Boulder hiking has so much to offer, from majestic, high mountain peaks to incredible rock structures. There’s something for everyone and the great thing is that there are so many trails easily accessible from the city.
We’ve broken up our guide below to the best trails to hike around Boulder by ones that can specifically be reached via shuttle buses and Boulder hiking trails you can drive to. There’s also a section on 14ers near Boulder too.
We’ve also included accessible trails and shorter, more beginner friendly hikes as well. You’re guaranteed to find something that appeals to you, whatever challenge or length you’re looking for.
As always, we’ve included location maps, downloadable trail maps and AllTrails map alternatives. As well as information on parking, gear and what you need to know in order to get out on the trail as easily as possible.
Boulder Hikes with Free Shuttle Buses Trail Locations Map
If you’re looking to do some of the more popular Boulder hikes, in the busier summer months a shuttle is available to various Boulder hiking trails.
These vary depending on which area you plan to visit. For example, there’s a different shuttle for Chautauqua Park and Eldorado Canyon State Park.
The shuttles are free and run from Downtown Boulder to various trailheads (park fees apply, though). If coming from Denver, there are also some areas you can park up and ride from too.
You can find out more information on which areas the shuttles run to, and at what times on the Visit Boulder website. They have it all usefully divided up into areas, with maps of the routes and running times.
The hikes around Boulder that make use of shuttles below are just a small section of what’s available. But should give you a great idea of what you can hike without having to worry about needing a car.
Use our map below to find the trailhead starting locations for the hikes near Boulder that you can get to via shuttle buses:
1. Chautauqua Park: Chautauqua Trail (including Flatirons)
Difficulty: Easy to moderate (dependent on experience) – some ascent and descent, but over a shorter distance.
Distance: 2.3km/1.4 miles out and back
Elevation: 158m/518 ft ascent and descent
When to do it: This is one of the Chautauqua Park trails that is best hiked from March through November. However, you can hike this trail in winter too, just be mindful. If you’re new to this, be sure to read our winter hiking tips article.
Where to park/how to get there: From late May until September on weekends, we strongly advise you take the shuttle from Boulder to the Chautauqua Trail. You can find more information about the shuttle’s pick up points on the Visit Boulder website here. Outside of these times, head for Chatauqua Park parking.
AllTrails map alternative: Chautauqua Trail
This is arguably one of the most popular hikes near Boulder CO, as it’s pretty easy to get to. From the entrance to the Chautaugua Park hikes, there are many trails that start from here.
We’ve listed a number of other Chautauqua trails further down such as the Royal Arch Trail which we’ve included later on. The Chautauqua trail we’ve included here is a great launch pad for some of these. However, it’s also great enjoyed on its own.
What we love about this trail is that it presents something a little easier and still gives you those stunning, iconic Flat Iron Mesa park/Flatirons views. It’s mostly on an incline out, but it’s never too intense.
There are plenty of opportunities to stop on the way for some of those iconic Chautauqua Park photos. Sometimes hiking on a less than perfect day can be pretty beautiful too. The low hanging cloud can do stunning things to the surrounding peaks.
As mentioned above, it’s possible to get to the trailhead on summer weekends via the shuttle bus (see above info). You’re also able to bring a dog too, provided they’re on a leash. There’s no fee to use this trail.
Whether you’re familiar with the hiking trails in Boulder Colorado or not, the Chautauqua hiking trails never disappoint. This is a perfect short trail if you’re short on time or want something a little easier going.
2. Eldorado Canyon Trail
Difficulty: Moderate – a steep trail in places with plenty of rocks and at altitude to begin with. Longer distance with significant ascent and descent.
Distance: 10.3km/6.4 miles out and back
Elevation: 501m/1643ft. ascent and descent
When to do it: You can hike this trail year round. Though spring, summer and particularly fall can be the most beautiful. In winter, be sure to bring winter hiking gear and micro spikes.
Where to park/how to get there: In summer between roughly May and September a shuttle runs to Eldorado Canyon State Park on weekends. This goes from Downtown Boulder to trails along Eldorado Springs Drive. You can find out more about the routes and times on the Boulder County website. We strongly advise you use this in summer as there is no outside parking nearby and a timed entry system is in place otherwise. Outside of these times, it’s still best to take the SKIP, DASH or any other RTD bus route. There is also limited parking along Eldorado Springs Drive at the trailhead.
AllTrails map alternative: Eldorado Canyon Trail
This Boulder hike has so much to offer year round. It has stunning views out at so many points for the effort to reward ratio.
In summer and fall, the leaves just come alive. In winter, like so many Colorado hikes, you’ll get to experience a wonderful snowy landscape.
This trail is pretty hard going though. It has a lot of ascent in the first section up from the parking lot, and plenty of rocks on trail. So, it can feel a little slower going. We’d recommend giving a whole day for this Eldorado Canyon State Park trail.
That said, the lookouts over the ridge give such incredible views and offers some quintessential Boulder CO hiking. When you visit, you may also get to enjoy the waterfall that’s tucked away on the trail.
Depending on how you reach the trailhead, you will still need Eldorado Canyon State Park tickets to hike this trail. A fee of $10 is required per vehicle. If on foot, a $4 fee is payable. More on this, and shuttle/reservation entry times here.
It is also possible to bring a dog, provided they’re leashed. If hiking this trail in summer, we’d seriously recommend sunscreen and sun protection!
3. Lost Lake via Hessie Trailhead
Difficulty: Moderate – a decent amount of ascent and descent over distance. A tough going, uneven trail with plenty of steeper sections. In winter, the trail can hold a lot of snow, so plan accordingly and be prepared for snow hiking.
Distance: 6.5km/4 mile ascent and descent
Elevation: 261m/856ft. out and back
When to do it: For the easiest hike, this Boulder hiking trail is best in the summer. Though it is open and suitable to hike year round. Take micro spikes and winter gear when snow is on the ground.
Where to park/how to get there: In winter, you can park at the designated parking along Fourth of July Road near the trailhead between signs. Over summer weekends, it’s best to take the Hessie Trailhead shuttle. It’s free and leaves from Downtown Boulder. More info here.
AllTrails map alternative: Lost Lake via Hessie Trail
This is one of the best trails in Boulder for ease of access and stunning alpine lake views. We don’t think there’s a lot better than heading up to Lost Lake via the Hessie trailhead and relaxing there on a summer’s day.
Like many hikes in Boulder, this trail has its fair share of ascent and descent. Prepare yourself for a pretty good uphill all the way to the lake. The trail is rocky too, so you’ll need to pay attention.
If you want to make a night of it, you can camp at the Lost Lake Campground located at the far end of the trail to which you’ll arrive on. You’ll need a permit to camp between June – September to which there is a fee payable. More info on this here.
Whilst we think this trail is great on its own, you can also combine it with the Woodland Lake Trail which offers a much longer hike. After you’ve visited the lake, you’ll go back on yourself and take a left fork onto Devil’s Thumb Bypass Trail.
This then joins the Woodland Lake Trail and up to Woodland Lake. Whichever trail length you do, we don’t think you’ll regret this one, it’s some of the best hiking in Boulder, full stop. Dogs are also allowed on a lead.
4. Sky Pond via Glacier Gorge, Rocky Mountains National Park
Difficulty: Difficult. Significant elevation gain over a longer distance at altitude. There are plenty of steep sections on this Boulder trail. In summer, the trail can feel exposed and hot in places. In winter, crampons and snowshoes will be required depending on the snowpack.
Distance: 13.9km/8.6 miles out and back
Elevation: 525m/1,722ft. ascent and descent
When to do it: This is one of the best hikes Boulder has to offer year round. Though be prepared for an even tougher hike in winter. Snow means you’ll need an understanding of winter hiking, as well as the right winter hiking gear like snowshoes and crampons, depending on conditions.
Where to park/how to get there: Rocky Mountain National Park is much easier to park in, and at the trailhead in winter. Though for a lot of people visiting in the summer, there is a timed reservation system in place to visit if you want to go by car. However, if you catch the Bustang (more on timings, dates and maps here) that is put on over summer weekends, you do not need a timed entry. You can also use the park hiker shuttle, as you would normally at this point once you arrive inside the park boundary to get to the trailhead easily (more info on this here).
AllTrails map alternative: Sky Pond via Glacier Gorge Trail
If you’re up for a challenge, then Colorado hiking doesn’t get much better than the Sky Pond and Glacier Gorge. However, we think this trail is well worth the effort.
Along the way, you’ll be treated to places like Lake of Glass, Timberline Falls, Alberta Falls and Loch Vale. Once you’ve hiked up the majority of the ascent, you’ll have the most awesome views out of the Rockies and Taylor Glacier. It’s some of the best hiking Boulder has to offer.
Don’t underestimate this trail either. It’s tough in summer, with a lot of ascent and descent. It will get your blood pumping, and the trail is at altitude.
This is even more so if you hike the trail in winter. You’ll need crampons and snowshoes depending on how the snow pack is. In winter, allow yourself extra time to complete the trail and go at a slower pace.
As with many hikes in Boulder Colorado, you’ll need a park pass to enter. We’d recommend getting an America the Beautiful Pass in advance from REI as they work out better value if you plan to visit a few sites in the next year. Dogs are also not allowed on the trail.
If you like the look of the RMNP trails near Boulder CO, we’d also recommend reading our Rocky Mountain National Park lake hikes article. Likewise, our day hikes near Denver article also covers various hikes in this area that you’ll love.
As an alternative, it’s not technically ‘free’ but then nothing in RMNP is! We’d really recommend if you don’t want to drive, to enjoy this Rocky Mountain National Park day trip from nearby Denver on GetYourGuide.
It’s a great way to see the park without having to drive. It also includes your entry fee to the park and lunch. The local guide is so knowledgeable, and you’re likely to find out lots of little bits of information that you wouldn’t have otherwise!
Hiking Trails in Boulder, Colorado Trail Locations Map
There is so much variety on offer when it comes to the best hikes Boulder has to offer. From towering peaks that will give you a workout in Rocky Mountain National Park to the easy hikes Boulder has to offer that still promise stunning views.
Our map here shows trailhead locations for the hiking in Boulder and hiking near Boulder that we’ve included below:
1. Royal Arch Trail, Chautauqua Park
Difficulty: Moderate – significant elevation gain with steep steps, switchbacks and loose rocks.
Distance: 5.7km/3.5 miles out and back
Elevation: 392m/1286 ft. ascent and descent
When to do it: Between March and October are the most ideal times to visit Royal Arch, Boulder. However, it is possible to hike this trail in winter but be prepared with snow spikes and/or snowshoes.
Where to park/how to get there: This trail starts with the Chautauqua Trail which leads to the Royal Arch Trail. Out of season, it’s possible to park at the trailhead for this trail at Chatauqua Park parking. From May to September on weekends, we would really advise you take the shuttle which goes from Boulder to Chautauqua Trail. All the up to date info on shuttle pick up points is on the Visit Boulder website here.
AllTrails map alternative: Royal Arch Trail
The Royal Arch trail is a great opportunity to extend the Chautauqua trail (that we covered earlier on) to get further up with great views over the Flatirons. It will get your legs working as you climb up a lot of steps to reach the arch with plenty of switchbacks.
There’s also plenty of other interesting points on this Chautauqua Park, Boulder trail. As you head up, you can expect to head past forest, river sections and some scrambling. It’s certainly more on the tough side of moderate, but the views and variety on the trail are well worth the effort.
Like many hikes in Boulder, CO, if you head out in the winter months, you should be prepared for icy conditions. Always take micro spikes and snowshoes just in case (though this trail does look stunning in the winter).
The arch at the top feels so big, and there are some perfect photo spots from just below looking up to the arch. Which gives a great view and perspective of the rock formation.
Likewise, from the arch, there are some truly stunning views out of the surrounding area. It’s a great place to stop, rest and take some time before heading down again. Dogs are allowed on the trail provided they’re on a leash.
2. Realization Point: Green Mountain and Greenman Loop
Difficulty: Moderate – a steep ascent over a rocky trail. In winter, snow shoes or spikes will be needed if conditions require.
Distance: 6km/3.7 miles part loop, part out and back
Elevation: 408m/1338 ft. ascent and descent
When to do it: This is one of the best trails Boulder has to offer between April and October. You can hike it year-round, but we’d recommend doing this loop counterclockwise when ice and snow is present. You’ll also need snowshoes and/or crampons/spikes.
Where to park/how to get there: Parking at Realization Point. This is paid for parking. It will likely get very busy in peak season, as it is also the starting location for various hikes. So, plan to go early or later.
AllTrails map alternative: Green Mountain via Ranger
The Realization Point Boulder area presents some pretty awesome hiking in Colorado. This area has numerous mountain trails to choose from and is just up from the main Chautauqua Park.
Our trail here focuses on Green Mountain, which has some pretty visionary views out at the top of the surrounding area. The vistas are simply stunning, well worth the steep effort and we think this trail is some of the best hiking in Boulder, Colorado.
The trail starts out from the parking lot and immediately gets into an incline. Though this isn’t as steep as when you meet a fork in the trail which will take you around and up to Green Mountain via a loop.
In winter, when the trail is more fully packed with snow or ice, we’d recommend doing the trail counterclockwise as a safer, more manageable ascent and descent. In summer, either is good.
This trail is really beautiful at any time of year, as it offers something different at all times. Be mindful that in summer and at peak times, the parking lot will become busy. In winter, you will need snowshoes or spikes. Dogs aren’t allowed on this trail either.
3. Bear Peak
Difficulty: Difficult – a significant ascent and descent over a longer distance. At altitude, and with switchbacks. This trail has loose rocks and some small elements of exposure in places. The summit can be very windy.
Distance: 9.7km/6 miles out and back
Elevation: 808m/2650 ft. ascent and descent
When to do it: This is one of the great hiking trails near Boulder to enjoy between April and October. Though it is possible to hike this trail year round, but in winter you’ll need spikes, or snowshoes depending on conditions.
Where to park/how to get there: Parking is free from the National Center for Atmospheric Research (NCAR). Here is a map location.
AllTrails map alternative: Bear Peak via NCAR
Boulder trails have a lot to offer, so it’s got to boast a lot to get up there at the top. The Bear Peak trail does that in plentiful amounts.
If you’re looking for hikes near Boulder, Colorado that offer a lot in a relatively short trail package, then we’d really recommend you put this at the top of your list. Starting out from the NCAR, you already have some great views back into Boulder. However, you’ll then head downhill through a creek.
At this point, your work starts, and you’ll head up the steep trail that will get your heart racing. Then it’s onto switchbacks and you’ll be amongst tree cover that will give you a bit of welcome cool if you attempt in summer.
The prize of this hike though is Bear Peak and the unparalleled views it offers out. The last section up to the peak involves some very light scrambles. When you get to the top, the panoramic views will make you agree with us that Boulder, Colorado hikes don’t get much better.
4. Sugarloaf Mountain
Difficulty: Easy – a shorter distance trail with limited elevation gain. Some rocky sections and exposure, but overall, well trodden.
Distance: 2.1km/1.3 miles out and back
Elevation: 139m/456ft. ascent and descent
When to do it: One of the great places to hike near Boulder year round. Take care with spikes in icy/snowy temperatures.
Where to park/how to get there: You can park at Sugarloaf Mountain Trailhead. There is no fee.
AllTrails map alternative: Sugarloaf Mountain
If you’re looking for a short, sweet hike in Boulder, then Sugarloaf Mountain should be your next stop. This is a great one for when you want to put in less effort, or you’re short on time.
Easy Boulder hikes don’t often offer such spectacular views as Sugarloaf Mountain. This trail is made easier by the starting point being on higher ground from Sugarloaf Mountain road.
It’s a pretty straight up trail, but what we love is that it offers a more gradual ascent. Once you’ve followed the trail up to the summit, you’ll see why this is still some of the best hiking in Boulder. The views out are stunning.
On a clear day, you’ll get a fantastic look out at the higher Rocky Mountains in the distance. As well as more developed and lower lying land before it.
If you’re looking for easy hikes in Boulder to do with your dog, then you’re also in luck here. Dogs are allowed on trail on a leash. Boulder also runs a Voice and Sight Program for dogs, that’s well worth looking into.
5. Wonderland Lake
Difficulty: Easy. A shorter distance trail with very little elevation gain. Outside of snowy and icy conditions, suitable for people with mobility equipment. You may need all terrain tires depending on your device. The trail mixes between paved, gravel and dirt and is roughly 6 feet wide, with no more than a 5% grade at any time.
Distance: 2.7km/1.6 mile loop
Elevation: 26m/85 ft. ascent and descent
When to do it: This is one of the best easy hikes near Boulder to enjoy year round. If you require the trail to be its most accessible, it’s best to visit when there is no snow or ice on the ground.
Where to park/how to get there: Parking is available at the trailhead here. A relatively small parking lot. There are two accessible spaces at the trailhead. The parking lot is paved.
AllTrails map alternative: Wonderland Lake Trail
There are plenty of lake hikes near Boulder. But this easy and accessible trail is great at any time of the week for a less demanding trail or if you simply don’t have time.
The Wonderland Lake trail has some truly beautiful views. The trail is pretty much entirely flat with very minimal inclines, suitable for people with mobility equipment. You’ll start to get great views out of the flatirons at points and the surrounding mountains.
Trails in Boulder can be quite demanding, but this trail offers so much for a more gentle approach. There are so many opportunities to take in the almost dreamy atmosphere of the prairie fencing, wild open space and peaceful lake.
As you set out on the trail, you’ll make your way down to Wonderland Lake. Then you’ll take a circuit around it to take it in from all angles.
There are various viewpoints you can stop at along. On sunny warm days, this is the perfect place to chill out with a picnic too. It’s very child friendly too.
If you need the trail to be as accessible as possible, we’d advise you not to visit when there is snow or ice on the ground. As this makes conditions much more difficult. When there isn’t, this is a fantastic trail for all.
Insider tip: As an alternative, there are plenty of guided hikes in Rocky Mountain National Park that take the fuss out of getting there yourself. They can also be a great way of building your confidence. We love this waterfall hike, on GetYourGuide which we think you’ll love too. We’d also recommend this breathtaking sunrise hiking tour too.
6. Mount Sanitas
Difficulty: Moderate – some exposure on the trail up (a backbone style ridge). Steep ascent and descent over an uneven trail.
Distance: 5.3km/3.2 mile loop
Elevation: 395m/1295ft. ascent and descent
When to do it: One of the great hiking trails in Boulder to do year round. In winter, be mindful of snow and ice on trails. Be cautious and take spikes.
Where to park/how to get there: Like many of the hiking trails Boulder has to offer, the parking is free at present. There is a parking lot at Centennial Trailhead which does get busy. There is also roadside parking. But we’d advise you to arrive early in peak season and weekends. It’s also possible to walk to the trailhead in about 30 minutes from Downtown Boulder.
AllTrails map alternative: Mount Sanitas, East Ridge and Sanitas Valley Loop
Mount Sanitas is a great trail with some absolutely stunning views out toward the Rocky Mountains and the surrounding foothills. This is also one of the best hikes in Boulder to give you a full on workout.
When you set off from the trailhead, it’s not long before you get out onto the ridge as you head up to Mount Sanita’s summit. The full on push to the top gives you some quintessential Boulder, Colorado hiking.
What we love about this trail is that it’s easy to get to the trail from Downtown Boulder. A walk to the trailhead will add about 1 hour (3.2km/2 miles) in total.
As you head down, a steep trail will take you to the Sanitas Valley, which is a great way to head back and get a different feel. We think you’ll love this trail – it’s simply stunning and a must do when you’re in Boulder.
Like many Boulder, CO hikes, dogs are allowed on trail, provided they’re on a leash. We’d also advise taking suncream and plenty of water if you do this trail on a hot day!
7. Lily Lake, Lily Ridge and Estes Cone
Difficulty: Difficult. A longer distance trail with significant ascent and descent. Some exposure on the trail. The last ascent up to Estes Cone is very steep and caution is needed.
Distance: 12.7km/7.9 miles part loop around the lake, and out and back for the cone.
Elevation: 679m/2227ft. ascent and descent
When to do it: Like many of the hikes Boulder, Colorado has to offer, we’d recommend doing this trail between May and October when snow is less likely. Though the trail is able to be hiked year round. Thick ice and snow pack will likely be on the ground at these times and you’ll need some experience of winter mountaineering to feel safe. Take traction aids and hiking poles too.
Where to park/how to get there: Parking is available at the Lily Lake Trailhead here. Parking may be limited in high season or at weekends, so plan to arrive early. A National Park Pass or an America the Beautiful Pass is required for entry into Rocky Mountain National Park. We’d recommend buying an America the Beautiful Pass in advance from REI here.
AllTrails map alternative: Lily Lake, Lily Ridge, Storm Pass and Estes Cone Trail
If you want a challenge hiking near Boulder, CO, add this one to your list immediately. Set inside Rocky Mountain National Park, this beautiful trail first takes you on a short loop around the stunning Lily Lake.
This is a great, short hike in itself, but as you turn off onto the Storm Pass trail, you start to gain height slowly at first before things ramp up very quickly. The views at this point are sublime.
The final section of the outbound trail takes a right and heads up to the summit of the infamous Estes Cone. Things get very steep here and the very last section involves some scrambling, but this is over pretty quickly and you’ll soon be enjoying the incredible views you’ve worked hard for.
Like much hiking Boulder, Colorado has to offer, in winter this trail is a different affair altogether. However, unlike some of the other trails we’ve included, Este’s Cone’s verticality means you’ll need some solid winter mountaineering experience and knowledge to feel comfortable when there is heavy snow and ice pack.
Likewise, if you’d prefer to leave off Estes Cone, the hike up along the Storm Pass trail still offers stunning views. Good hikes near Boulder don’t get much better.
In summer, keep in mind that afternoon thunderstorms are common, which typically start at around 3pm. We’d also advise bringing sunscreen. Sadly, dogs are not allowed on trail in the National Park.
If this hike appeals to you, we’d also recommend checking out our Rocky Mountain National Park lake hikes article. This covers plenty of other lake hikes in the National Park for all abilities and experience levels.
8. Alpine Ridge Trail
Difficulty: Moderate. Don’t underestimate this trail. It may be short, but it’s very steep and is at altitude so will feel fuller on. Involves a number of steep steps to reach the viewpoint.
Distance: 1.2km/0.7 miles out and back
Elevation: 67m/219ft. ascent and descent
When to do it: The best time to hike this trail is between June and October.
Where to park/how to get there: Parking is available at the Alpine Ridge trailhead here. You will need a National Park Pass or America the Beautiful Pass to park. We’d recommend the America the Beautiful as they’re much better value for one year of entry to all US National Parks and many more sites. We’d recommend buying this in advance from REI here.
AllTrails map alternative: Alpine Ridge Trail
We wouldn’t recommend taking a special trip to do the Apine Ridge trail on its own. However, if you’ve visiting Rocky Mountain National Park it’s a great, short hike that you will likely go past anyway if you’ve driving along Trail Ridge Road.
If you can, we’d recommend making time for this trail, as the sublime views it offers on the ridge makes it some of the best hiking near Boulder, Colorado. The photo opportunities alone make it worth the effort.
A word of warning though, this trail does start from a high elevation. If you’re not used to the altitude, you may find this trail hard, so just go slowly and keep taking breaks to catch your breath.
If you want one of the best hikes near Boulder when visiting Rocky Mountains National Park, this is without a doubt it. Once you’ve got through the short, steep effort it needs, you’ll be totally glad you did it!
As with all hikes in the National Park, dogs aren’t allowed on trail. Take layers as you may find the trail and area colder than you think due to altitude.
14ers Near Boulder, Colorado Trail Locations Map
One of the incredible things about the areas surrounding Boulder is that they give the opportunity to tick off some bucket list worthy 14,000-foot peaks (aka 14ers). Some of these trails are incredibly tough but without a doubt present some of the best hiking near Boulder, Colorado full stop.
Aside from Blue Sky Summit, all of the trails we’ve listed below require an extensive hiking knowledge and an understanding of what’s involved with these grueling trails. Though, what they present is something truly iconic you will never forget.
Use our map below to find the trailhead starting locations for these best hikes near Boulder, CO that we’ve listed below.
1. Grays Peak
Difficulty: Difficult. Significant ascent and descent at altitude. This is a route best suited to those with significant mountain experience.
Distance: 11.6km/7.2 miles out and back
Elevation: 907m/2975ft. ascent and descent
When to do it: If this is your first time here, then this is one of the best Boulder CO hiking trails to do between May and October. Though it is possible to hike this trail in winter, you should have the relevant winter mountaineering experience and confidence level to do so safely.
Where to park/how to get there: There is parking available at the Grays and Torreys Trailhead here. This is suitable for 4 wheel drive cars. If you’re driving a standard or 2 wheel drive, you will be best parking at the Winter/Lower trailhead here and hiking up Stevens Gulch Road.
AllTrails map alternative: Grays Peak via Grays Peak Trail
Grays Peak is a very iconic 14er near Boulder, and rightly so. The hike up it, whilst full on, is also pretty simple and easy to follow as a pretty much straight up and back hike.
It’s well worth keeping in mind that the trailhead we’ve plotted from is the summer trailhead and is suitable for 4×4 vehicles with higher clearance. If you have a low clearance vehicle with 2wd, you will need to park at the winter/lower trailhead (map location above).
This does pretty much double the distance, so we’d advise you try to visit in a 4×4 if at all possible. As whilst this is one of the best Boulder hikes, this does obviously increase the intensity somewhat! Likewise, if hiking in winter, you’ll need to use the lower trailhead.
Once you get out on the trail, it’s pretty much straight up on the Continental Divide Trail for a while. Climbing steadily up, you’ll reach above a small lake to your left with stunning views out.
The last section to Gray’s Peak involves a number of switchbacks which take off the heat of the steepest sections. The views from this prominence are absolutely subline and is without a doubt one of the best hikes around Boulder, CO.
You’ll be able to see a number of lakes down in the distance. And due to it being the highest peak in the area, pretty much 360 views.
This is also a popular spot to take on the ridge up to Torreys Peak, just slightly further along from Grays Peak. This peak is easily accessible from the summit of Grays and based on your ascent already, doesn’t add a huge amount extra.
It’s a great way to add another 14er to your day, and rather than taking the same route back, you can bypass and take the Kelso Ridge back to meet the main trail. A perfect day in the mountains!
2. Mount Bierstadt
Difficulty: Difficult. A significant ascent and descent at altitude. Steep and rocky with plenty of switchbacks.
Distance: 11.6km/7.2 miles out and back
Elevation: 816m/2677ft. ascent and descent
When to do it: Like many Boulder, Colorado mountains, this trail is best completed between May and October. It is possible in winter, but winter mountaineering experience is required.
Where to park/how to get there: You can park at the Bierstadt trailhead here.
AllTrails map alternative: Mount Bierstadt Trail
We have actually already covered both Mount Bierstadt and Grays Peak in our day hikes near Denver article. They’re both such great, significant mountains in Boulder, Colorado that we couldn’t not include them in this article!
This may be one of the first 14ers a lot of people do in the area, in fact it’s one of the best trails Boulder has to offer for that. However, you shouldn’t discount just how full on this hike is.
Whilst the trail is a pretty straightforward one up – working through slightly gentler uphill to begin before hitting steeper switchbacks, the altitude makes this hard work. The final push to the summit will have you feeling like you’ve worked for the views that await you.
We would advise you hike the trail earlier on in the day in summer. Thunderstorms can come in very quickly from around 3pm, and the final ridge section can be dangerous in bad weather conditions.
3. Mount of the Holy Cross
Difficulty: Difficult. This trail is hard going and should only be attempted by experienced mountaineers. Significant distance and very significant ascent and decent at altitude. This is a wild and rugged place, beautiful, but humbling and to be seriously respected.
Distance: 16.9km/10.5 miles out and back
Elevation: 1671m/5482ft. ascent and descent
When to do it: This is one of the best hikes near Boulder Colorado to do between May/June and September/October depending on the weather and snowfall. Winter ascents are not recommended as this is a very demanding route.
Where to park/how to get there: Parking is available for this trail at the Halfmoon Campground here.
AllTrails map alternative: Mount of the Holy Cross Loop
This is a long, demanding trail, so we’d recommend if you can, camping at Half Moon campground the night before. This will allow you to make an early start at the trail. You can expect to spend upwards of 8-10 hours on this trail. More depending on your speed.
Whilst this is absolutely some of the best hiking near Boulder, don’t take the demands of this trail lightly. It is extremely long with a significant elevation gain and loss.
If you’re up for this trail, you should be well experienced with high altitude hiking, scrambling and pacing your energy. That said, this is an absolutely stunning mountain experience and one of the best hikes in Boulder, CO.
Likewise, you can also make a weekend of this trail. Another recommendation we’d make is to hike up to the campground about halfway up to the summit.
There is a lake to your left, and dispersed camping here. You can then make a summit push the next morning.
From the top, the views out over Bowl of Tears and the surrounding mountains are utterly breathtaking. If you have the experience, you really will not regret this trail. Just be prepared well for what it entails.
4. Mount Blue Sky Summit
Difficulty: Easy. This is one of the best hikes in Boulder, Colorado to get in a 14er with very minimal hiking. A very short, well maintained trail. Though the altitude may make this trail feel harder for you than you might expect.
Distance: 0.9km/0.5 miles out and back
Elevation: 18m/59ft. ascent and descent
When to do it: This is one of the best easy Boulder hikes to do between June and September.
Where to park/how to get there: You can park for this short trail at the Mount Blue Sky observation area here.
AllTrails map alternative: Mount Blue Sky Summit Trail
If you’d love to stand on top of a 14er, but what’s involved with some of the other trails isn’t accessible for you, then the Mount Blue Sky trail is one of the best hikes in Boulder Colorado to answer that!
This trail starts off from the end of a scenic drive and allows you to park up your car and take the short hike to the summit. You may still find the altitude a challenge, but it’s a well looked after trail with incredible views.
We’d recommend going on a good weather day so you can get a stunning, long range view out. This trail will make you feel on top of the world and is a great, much more accessible option.
Dogs are allowed on a leash. It’s also important to keep in mind that the road up can be closed in winter, so we’d recommend going in the summer where possible.
You will also need a permit to visit the San Isabel National Forest and Mount Evans Wilderness, where this trail sits. You may also need a timed entry permit, depending on the time of year you go – more information on this here.
Essentials for Hiking Near Boulder
There are plenty of items and things to know when it comes to the essentials for hiking near Boulder. Our list below goes over some of what we think are the essential things to bring and know.
We’d also recommend reading our day hiking checklist and what to wear on a hike articles. As well as our winter hiking tips guide to give you a heads up in more detail for some of these areas and varying seasons too.
- Be prepared for altitude. Whether you’re used to the altitude of the high mountains or not, this is something you should take into consideration. Many of the hikes we’ve listed here start well above 2,000m. Many much higher. Do not underestimate this. Acclimate and go slowly.
- Afternoon summer thunderstorms. These can be a real issue when hiking in Colorado. Try to get on the trail early as summer thunderstorms can typically hit around 3pm if they’re going to. Trail conditions can change pretty quickly here.
- Snow in winter changes the landscape. Whilst some of the trails we’ve listed above are beautiful done in winter with the right gear, remember that winter changes the landscape. There is a risk of avalanche, snow drifts and indistinct trails. Be prepared for this, and only work within your limits.
- Timed entry systems. Some areas do have a timed entry system in busy parts of the year. We’ve done our best above to make note of these where it’s a potential issue. Though keep in mind these can change so it’s best to check in advance.
- A good, layered hiking wear system. We go through this in more detail in our what to wear on a hike However, you should carry a good system that you can shed or add layers depending on the temperature. This will typically mean a base layer, a mid layer, a puffy and a waterproof rain jacket for hiking. On the bottom, hiking trousers are a fail safe for most hikes, with a pair of waterproof rain pants for hiking in your daypack, should you need them.
- Trekking poles. Due to some of the full on ascents on the hikes we’ve listed above in this article, we’d recommend hiking or trekking poles. They take a lot of the strain off your body and make recovery the next day so much more manageable. We have a full guide on the best trekking poles, which cover a range of options for all budgets.
- Good hiking footwear. Depending on your personal preference, this can either be in the form of hiking shoes or hiking boots. Personally, we prefer a more sturdy, full on hiking boot for high altitude ascents. They make a big difference when it comes to the amount your foot can grip and take on different rocky surfaces. We have guides on the best hiking boots, the best hiking shoes and also the best waterproof hiking shoes, which all contain lots of options for varying budgets.
- Download your maps in advance. We always recommend downloading your trail map in advance to avoid any problems in patchy service areas. We’d also recommend bringing a paper map and hiking compass and knowing how to use it as a failsafe back up.
- Bring sunscreen. Due to the altitude you’ll experience around Boulder, the UV exposure to your skin will be higher. We always recommend bringing a high factor sunscreen. Even in winter if it’s sunny, and especially in snow. We like this one, as it has a non greasy formula.
- Bring plenty of snacks. Due to the amount of work you need to put in on a lot of the hikes near Boulder, you should keep consistently eating snacks to keep your energy up. We like things like Clif Bars and peanut butter pretzels. Basically, anything you really enjoy and want to eat that has a combination of carbs and protein.
- Bring more than you think. We always like to take at least two 32oz Hyrdro Flask’s per person. Or a water reservoir like this one. How much water you take should depend on your hike length and how hot it is.
FAQs About Hiking Around Boulder
Whilst we’ve covered thoroughly each of the hikes above, there’s of course always more to know! Boulder (and also surrounding Denver) have so much to offer, whatever your tastes.
Here’s our list of some of the most frequently asked questions when it comes to the best hiking trails Boulder has to offer.
What Are the Best Hiking Trails Near Boulder?
Boulder County trails have so much to offer, in fact, there’s is so much to offer that it would be impossible to say which are the best. It depends on what you enjoy from a hike.
If you’re looking for something incredibly full on, then we’d recommend the iconic Mount of the Holy Cross (in our 14ers section above).
If lakes are more your thing, do Lily Lake, Lily Ridge and Estes Cone in Rocky Mountain National Park. This is listed in our hiking trails in Boulder section above.
If you want something more accessible, then we think the best hike in Boulder for this is Wonderland Lake, listed above. Whatever you go for, you won’t regret it!
What is the most scenic hike?
Boulder and the surrounding areas present some of the most iconic views in the area. We think that Sky Pond via Glacier Gorge in Rocky Mountain National Park is one of the most beautiful out there.
What are the best hiking trails around Boulder for beginners?
Whilst much of the landscape is pretty high altitude surrounding, there are still plenty of hikes that are good for beginners.
The Chautauqua Trail would be our first suggestion. We’d also suggest Sugarloaf Mountain, then developing to the Alpine Ridge Trail, one of the short hikes Boulder has to offer that packs a punch (all listed above).
However, whilst there are a lot of very high altitude mountains near Boulder, the Boulder elevation of 1655m/5430ft does put you at an advantage to start training and building up to coping with elevation.
Once you have done some of the ‘mid’ range trails, you can start building up toward higher altitude peaks. These that present a totally different experience.
What are some of the other outdoorsy things you can do around Boulder?
There is so much! For something a bit different, we’d recommend this astronomy and dark skies tour on GetYourGuide. It gives you something truly unique and memorable to be mesmerized by!
How long does it typically take to hike the Flatirons Trail?
Depending on your speed and the amount of photo stops you make, you could easily hike this trail in a couple of hours. If you wanted to do it really fast, you could even do it in an hour.
If you have time, we’d also recommend doing the Flatirons Vista Scenic Drive too. Here’s a Google Map of the drive from Boulder.
Are there any family-friendly hiking trails?
There are plenty of family friendly trails near Denver. Some of the most friendly are around the Eldorado Canyon State Park trails (or the Eldo for short). Likewise, if you look at a Chautauqua trail map there are plenty of family friendly options too. Rocky Mountain National Park has some great ones also.
Our tip would be to look at our AllTrails map alternatives for each trail we’ve listed. Each AllTrails map we’ve provided gives you information on whether the trail you’re looking at is child safe or not.
What are the top trails for birdwatching?
Pretty much all the trails we’ve listed are good for bird watching at different parts of the year. Some of the more accessible trails like the Wonderland Lake trail are great for spotting birds.
If you want something more full on, we’d recommend sticking to some of the trails below 14k feet, but also still at decent altitude.
Are dogs allowed on hiking trails?
Dogs are allowed on some of the best hikes around Boulder, which means you can share some great memories with your pup.
Most hikes will allow a dog on a leash, unless otherwise stated (we’ve tried to provide as much information here as possible). Boulder also runs a Voice and Sight Tag System for well behaved dogs to go off leash. You can find out more about this here.
The only area that doesn’t allow dogs at all is Rocky Mountain National Park. This is in line with pretty much every other US National Park, so it’s best to leave your dog at home if visiting.
What is the best time of year to hike around Boulder?
Whether you know the area well or are visiting and looking forward to hiking, we would recommend that the best hikes Boulder, CO has to offer should be ideally completed in summer.
Whilst it does get extremely busy around this time, the trails will be in the best shape. Some of the trails can become difficult in winter, so unless you have the experience, we’d recommend getting to know the trails at their best first before attempting in winter.
Are there any trails that are wheelchair accessible?
The best hike Boulder has to offer for those who want something wheelchair accessible is the Wonderland Lake trail. The trail also offers accessible parking.
If you take a look at our trail description above for this, you’ll see we’ve noted path and trail conditions. We’ve also included maximum grades throughout, so you know what to expect on this beautiful trail.
Are there hikes near Boulder with views of the city?
There are a number of hikes that we’ve listed above near Boulder that have views of the city. You can check these for trail starts and conditions.
Chautauqua Park (Flatirons) have views out. As does the iconic Mount Sanitas. If you visit Mount Sanitas on a clear day, you are likely to have stunning views over the city.
Is there a fee to access any of the hiking trails?
Some of the places to hike in Boulder do have fees to park. This can be in regard to a permit for timed entry, or for parking. We have done our best above to list out any areas where you will need to pay fees. However, keep in mind that these can change, so always check in advance.
The area where you absolutely do need to pay a fee to access the hiking trails is Rocky Mountain National Park. We would recommend buying an America the Beautiful Pass in advance from REI here.
This is great value if you know you’ll be visiting any more US National Parks and other areas they cover in the following year. You only have to make roughly two National Park visits for this to break even. We think it’s well worth it!
What are the most popular trails around Boulder during the fall season?
Some of the most stunning Boulder area hikes in fall are the Mount Sanitas trail, Bear Peak, Royal Arch trail and the Chautauqua Trail and the Flatirons. In fact, we’d recommend taking a look at the Chautauqua Park trail map for some of the best.
These are all great for seeing that iconic fall scenery. In earlier fall, a trip to Rocky Mountain National Park should be a must do one year. The colors are sublime!
Are there any hiking trails with picnic areas?
Many of the hiking trails we’ve listed do have picnic areas at some points on the trail. If this is something of specific interest, we would recommend you check out our AllTrails map link. These usually include more specific information on picnic areas.
Which trails near Boulder offer good opportunities for photography?
The great thing about hikes in Boulder is that they’re all incredibly scenic. It doesn’t matter what you want to photograph, you are always guaranteed a stunning scene.
Rather than thinking about the best trails in Boulder for photography, we’d recommend looking at the weather. For some of the higher peaks, we’d recommend going on the best weather days.
In fall, wait for later in the day when golden sunshine will be highlighting the trees and the top of the peaks. In summer, go earlier in the day to avoid thunderstorms.
Winter, if you have the experience, can also provide some wonderful, snowy mountain paradises to photograph. This can give you something completely different and extremely dramatic.
What hikes near Boulder offer views of the mountains?
We don’t think there’s a single trail that we’ve listed above that doesn’t offer views of the mountains. Of course, some of the lower elevation trails, such as Wonderland Lake offer a more distant, low level view.
Naturally, when you get higher into the mountains, the peaks out in front of you will offer something completely different. However, you can be pretty much guaranteed that any of these hikes you do, you’ll have mountain views (unless completely foggy weather is present).
Enjoy Exploring the Hiking Trails Around Boulder, Colorado
Whether you live in the area and are looking for some new trail inspiration, or you’re visiting from out of town, we hope our guide has given you a dose of excitement for hiking in Boulder. There’s so much to explore.
We love the fact that any hike you go on near Boulder is pretty much always going to be a good one. Its proximity to amazing mountains, iconic trails and tough, full on adventures make it an awesome place to be.
We know whatever hike you decide to do, you’ll love it – and how could you not, the views are stunning. If you’re also looking for other hikes in the area, we’d recommend checking out our day hikes near Denver and Rocky Mountain National Park hikes articles for more inspiration.
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