Explore the most popular trails near Boulder with hand-curated trail maps and driving directions as well as detailed reviews and photos from hikers, campers and nature lovers like you.



trail running


nature trips

dogs on leash

wild flowers




kid friendly

mountain biking

dog friendly

horseback riding

no dogs




wheelchair friendly

Boulder, Colorado Map

I would suggest starting on Sanitas Valley. The East Ridge part is pretty steep and much more dangerous to go down than up. The view at the top is great. Also this hike should be rated hard, not moderate.

15 hours ago

really fucking busy

17 hours ago

This was a perfect trail for my 3.5 year old and me. Not much elevation. Beautiful views of the divide. 2/3 of the trail is tree-covered. I counted at least 13 different species of wildflowers still blooming today!

Trailhead closed as of June 20, 2018

on Royal Arch Trail

1 day ago

This is a great short hike with beautiful views! Not super technical, so I’m guessing the “hard” rating is due to the the limited scrambling. Enjoy!

Decent tail steep in a few places, wildflowers were just starting to bloom. Alot of people heading up, I took it slow and easy. Saw some several deer, and an Osprey in flight.

Nice workout, hard and not kid friendly though.

2 days ago

Awesome trail to get your heart thumping, first 2 miles kicked my rear. I loved the trail,very rugged!! This trail is not for the faint of heart.

Really nice easy trail. Beautiful views along the creek. I’m sure it can get really crowded but at 730 on a Sunday morning it was perfect. Had a little bit of a hard time finding the trailhead based on using the navigation direct from AllTrails but we figured it out.

Challenging hike! I did this with my husband last week and it was great. Climbed a lot more than I expected. I definitely would not take my 6 and 4 year olds on this trail. It wasn’t too crowded during the week which was nice. Gets your blood pumping!

mountain biking
3 days ago

Loved every part of the trail riding on my mtb.

great with kids

I hiked on a gloomy day. There are not a lot of hikers. It is a short but sweet hike. Great views up the top. Love it!

This was such an amazing hike, but be prepared to work. Started sweating 10 mins in, and I normally don’t sweat much at all! This trailhead started incline immediately, and doesn’t ever really level out at any point. However, this is my favorite hike that I’ve done by far. The views are incredible at the top. BUG SPRAY IS NECESSARY, especially at the peak. Would hike again. Make sure you are in shape to climb 2600 ft in a 2.2 mile span.

3 days ago

Gorgeous hike through the forest during a light drizzling rain. Saw less than a dozen hikers, bicyclists, and runners - not busy at all.

Gorgeous views from the top and it definitely got our hearts pumping!

Awesome Views! Hard hike for sure. Lots of climbing around on rocks. I suggest starting early to avoid the traffic. We started at 5:30 AM, by the time we got done the entire parking lot and side streets were packed.

on Bobolink Trail

3 days ago

Lovely trail, but the mosquitos are aggressive. There were times when I had more than 10 swarming around me!

on Royal Arch Trail

4 days ago

Had a cup of coffee and some toast and got to the parking lot at 6:15am and it was already packed. We paid to park there but a number of folks starting when we did recommended parking in on the street to save money. The gradual incline along the meadow at first gives a bit of false sense of security. The first third of the hike up flew by in comparison to the last two thirds which were steeper. We brought a lot of water, some peanut butter and jelly sandwiches and some granola bars and we had a breakfast picnic at the top. Stunning views, worth the thigh and calf burn and sore muscles. Take it slow and enjoy the scenery, wildlife and flora. In addition to the incessant clicking it cicadas munching on the trees, we saw some interesting birds. Amazing flowers in bloom - asters, mariposa lilies, penstamon, geranium, yarrow, yucca, and of course columbine. If you bring your dog, they should be fit, comfortable climbing up and over rock piles and steep inclines, and you should definitely bring water and snacks to share to help fuel them as well. By the time we were headed down, there were huge groups heading to the top - 2 families of 5, 2 groups of 10, and a group of 20.

Super easy! Great views every where! Some spots you can stop and go by the creek, put your feet in!

4 days ago

This hike is NO joke! Lots of natural steps + I would guess, about 1K feet of elevation gain in just over a mile. Some scrambling. Would recommend boots instead of tennis shoes. The arch is incredible and some great views from the top. Bring lots of water. I had 2l on a mostly overcast day and still almost ran out. Def worth it!

An awesome hike that’s close to home if you aren’t looking to drive too far for some good views. It kicked my butt, but I’ll be back!

4 days ago

Great workout, extremely steep... Hard climb, but so beautiful!!! Worth the trip!!

Challenging but beautiful

Short, not too strenuous, beautiful view at the top. I'll be doing this hike alot more often with my pup after work, especially considering easy parking at bottom.

5 days ago

This hike was extremely challenging! I loved it, it is so beautiful the scenery left me in ah. You do have to pay for parking here, it’s only 5 dollars cash only, that was the only downside.

6 days ago

amazing view at the top. the arch is way better in person than in the photos. I would recommend shoes with decent ankle support. it has uneven terrain throughout with scattered rocks everywhere. did see a bear cub about 1/4 the way up.

Awesome view, and the only thing I would have to recommend is to NOT drink the night before. Your girl was dying for air and water.

Beautiful hike. Made a wrong turn and ended up doing the canyon hike up to the next trail head and then on to Green Bear connecting to the Green Mtn trail. So glad it happened was an amazing views and the trail was a steady climb up to the trail head. Truly a hidden gem and worth the time.

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