Explore colorado 2017 - view hand-curated trail maps and driving directions as well as detailed reviews and photos from hikers, campers and nature lovers like you.

colorado 2017 Map
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hiking
1 hour ago

Such a fun hike! Lots of rocks you climb up, it does get steep. It’s not a paved path at all which we loved. It can get crowded at the top with people trying to get pictures but it’s well worth it. We’d do this hike again in a heartbeat.

Awesome trail!

hiking
7 hours ago

Perfect weather for this hike!! I enjoyed so much by the creek, it is always nice to get a nice breeze by the water. This ended up 8.4 mile hike, enjoyed it so much! 80% is shade, so great for hot summer hike as well. Totally different scenery from hikes around Baseline. Recommended! However this is not "Hard". Should be listed as "Moderate".

hiking
8 hours ago

Enjoyable hike! Little rocky and challenging at parts, but nothing too crazy. Dog friendly so expect to see a few 4-legged friends out there. Cool views!

Enjoyable, short, and a good exercise. Close to the road in Gregory canyon, but pretty scenery.

Great and challenging hike. Good elevation gain. Was able to do in about 3 hours. Quite a few trail runners, decent amount of wildlife too. Awesome views! You do have to pay for parking on the weekends, fyi.

hiking
9 hours ago

Very pretty trail. A bit crowded, but not as crowded as I was expecting. I'd call this trail moderate rather than hard, and I'm of average shape. There were parts that were tough, but it's really short so that's why I'd say it's closer to the moderate side. I got to the parking lot by 8 am and it was full. However, there was plenty of parking along the street. It cost 2.50 per hour.

1 day ago

Good, fairly easy hike. Bring plenty of water. Weather changes quickly. Very pretty views of the valley.

Hit the trail at about 7am on a Saturday and it was great, not crowded but started to see more people in the way down, still not bad. Definitely strenuous, but I haven’t done many hikes lately so I’m not sure I’m the best judge. Pretty mellow first half until you climb between bear peak and south boulder peak, easy to hit both while you’re up there and each offers a little bit of a different view so definitely check both out (only adds like 20 minutes I’d say to the hike). Very pretty views and diverse vegetation from top to bottom which kept it interesting. My knees were shakin’ on the way down as there’s lots of rocks to go down but that’s only about 1/2 of the trail, as the first half is quite wide and gravelly. Would definitely do it again!

Excellent trail! we did the first leg to the peak about 3 miles. mostly open until you start the climb. Climb was challenging over rocks, right turns. Peak had amazing views. Took Lion's Lair trail back down and this leg was mostly paved but a long 5 miles or so. Overall a really nice park in Boulder with several interesting trails.

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 trail!

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..

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. :)

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.

hiking
6 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
6 days ago

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

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.

I made it halfway up Timberline Falls, but after seeing 2 gals above me slip and get hurt climbing the wet boulders I decided to stop and enjoy hiking another day. Kudos to those brave climbers. Still a great challenging hike with amazing views! I will enjoy the photos of those that made it to Sky Pond

"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
7 days ago

Nice trail. Took me about three hours. Great views all the way throughout.

Great hike. Decently steep towards the top before the lake but gem lake is beautiful. Went further to balanced rock which was an 8 mile round trip and had some good views along the way. Would hike again!!

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