Explore the most popular walking 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.

Definitely some nice elevation gain with this one! I started at Gregory Canyon and ended on Flagstaff. First mile or so was all uphill and included some rock scrambling. Saw lots of wildlife including a deer. Rangview was also a lovely little hike. Ending with the Flagstaff trail, this is the part everyone speaks of that runs along the road and requires several road crossings. I didn't necessarily find the traffic bothersome but finding the trail after crossing the road could be somewhat difficult, however the alltrails map is super helpful. Would definitely do this hike again! I enjoyed the scenic views of Boulder and the challenge this hike provided.

great short family hike

hiking
9 hours ago

most beautiful hike I've ever been on

This is a short but challenging hike. Great views along the way and at the top. The hike up will get your heart going. The hike down seemed almost as hard, especially on the knees. There are lots of trails in this area. Pay careful attention to your route to the base of this trailhead as there are several that will bring you here.

This trail is rated difficult for a reason. Tons of large rocks and quick elevation gain. If you have balance issues or are afraid of heights I would say don’t do. The views at the end are fabulous though, great workout! Beware of small area that would almost qualify as rock climbing and not hiking although once you got up wasn’t that bad because of the hand and foot holds they added. Fairly heavily trafficked trail also..

Nice trail. Watch the signs

walking
16 hours ago

Nice WALK!

on Mallory Cave

hiking
16 hours ago

Very nice!

hiking
20 hours ago

An amazing view of what Boulder Colorado has to offer. A must see hike!

Really a walk, not a hike. Bob stroller friendly.

hiking
1 day ago

I did this trail right before sunset and it was beautiful! I left a little bit before the sky became extremely colorful so now I want to go tomorrow and stay later! I definitely recommend doing some nearby trails first, then ending with this trail. Only passed two people the entire time I was on this trail and there’s multiple lookout points for scenic views and fabulous pictures.

Great hike awesome view from the arch. steep in places and rocky. worth the trip.

Great trail, hard climb, worth every step

As others have mentioned it is about 8-9 mile loop, great scenery, going counter clockwise would of been easier, didn't know my clockwise to counter and went the hard way, the wildlife is great saw many deers, snake, chipmunk, and rabbits. Fun but challenging hike, especially the last mile, which felt like 3. :)

Nice hike, great views at the top!!

mountain biking
3 days ago

<3

Get run to build your mountain legs
Watch the poison ivy at the start of the canyon
Got sprayed by a skunk on the approach this morning

Quintessential Boulder hike. Went clockwise today - I prefer to tackle the big “steps” on the ascent and come down through the valley. Always nice to have bathrooms (across the street from the trailhead.) Friendly faces and interesting terrain. A perennial favorite.

I do this trail every Saturday morning. It's a nice little hike through the woods, just no real payoff..

hiking
4 days ago

Nice, short trail for a quick nature getaway. It is quite steep if you enter from Settler’s Park, much more than expected. There are beautiful views of Boulder at the top. Bring lots of water and sunscreen as there’s not much shade.

hiking
4 days ago

Great trail. Lots of climbing on the way up, but it’s all worth it for the views at the top. Go early to avoid the crowds – it was already pretty busy at 7am and people were lined up inching along the narrow paths on on the way down. Free parking is available about 10 blocks away.

hiking
4 days ago

Great morning hike! Took me 2 hours with a 15 min stop at peak.

4 days ago

Lots of intermittent shade. Good on a hot day. Bikes.

It’s a very nice trail !!

Certainly challenging, but nothing to lose sleep over. Expect to wait in line if you’re hoping to get decent pictures at the top.

"Stairmaster Sanitas" is a great place to get a very real workout in. We are in decent shape and climbed up Sanitas and went back around the valley loop trail within 2.5 hours. I would categorize this as "moderate to hard" given a few of the rocks you have to scramble over and how steep it is. While you can carry a child on a backpack up an down, it's not the greatest one to choose for that since you might have to shuffle a bit over rocks, etc.

hiking
6 days ago

This is definitely a “hard” trail, bust super proud when I finished! Practically all up hill on the way there but that means down hill on the way back! The views at the top are beautiful! I would recommend starting it sooner rather than later so the traffic is low and the sun isn’t too high!

hiking
6 days ago

We enjoyed this hike! It was definitely a high incline and rocky but it was worth it. It was a bit harder then expected the the views are beautiful and the arch is pretty neat. Bring lots of water, take stops and enjoy the outdoors! There are trees on a lot of the hike which gives some much needed shade every now and then.

hiking
6 days ago

Definitely a challenging trail. I’m in good shape but being from a lower elevation, I felt pretty winded at times. With breaks I still took about 4 hours with a half hour break at the peak. The view was worth it for sure. Highly recommend getting an early start since the trail is in the full sun at the beginning.

Thought we would start here on vacation to get used to the elevation before heading to RMNP but this was a tough hike for us. Arch bigger than expected and nice view of flatirons

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