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

23 hours ago

Just FYI, on May 26th 2018, there may be about 20+ young people on this trail at around 3-7pm. Ages 10+. So it will be super busy. They were trained regarding hiking in nature and wants to start their first trail on Chautauqua Trail. Thank you. I’ve been on this trail before and the trail is great. And yes, it does get busy at times. And yes, there will be chaperones with them.

1 day ago

My girlfriend usually takes about 200 pictures per hike. This hike she took at least 500. Great views.

Great views. Steep hike. Lots of people on a beautiful day. Landed in the morning from the east coast and jumped on this trail right away. Due to the elevation gain, we got tired very quickly. Drank lots of water. Fantastic day to start our vacation.

Beautiful with tons of wild flowers. Nice rock benches a little past the end. Sick cloud watching spot.

Don't let the wild flowers fool you, this beautiful hike is steep and long. One of my favorites! Great on Thursday with few people.dont forget it's $5 for parking

Started at the Bus Stop Broadway&Baseline and finished via Flagstaff and Viewpoint. All in all a perfect 23km hike - took me a bit more then 5h including breaks

Pretty hard trail but not too bad! Path can be unclear at times as you have to actually climb over some rocks but it's a beautiful scene once at the top! The trip down is quick and easy which makes the hard trip up not so bad!

Pretty good hike overall. Flat and then incline to the top of Green.

My favorite cardio trail. But very populated.

3 days ago

05/19--Did this trail after the 1st and 2nd Flatirons hike. Being from flat land made this pretty challenging and the weather didn't help. However, the feeling of looking up and seeing the arch was so worth it. Amazing views at the top.

4 days ago

5/22 great workout, good views, easy trail to follow. Lots of wild flowers. Too many people on the trail...even on a Tuesday. I went clockwise. Also plenty of trash (collected everything I saw), and dog poop bags. Instagram ec_boyd

Kids loved it but lots of loose rock and mud.

Great trail with some steady inclines. Nothing too crazy but defiantly a good workout. Plus some of the views are amazing!

Loved this hike! It’s pretty steep but the view is amazing

Hiked with the doggo on 5/22/18 - started at about 9:15 and was at the summit by 9:50 including taking a couple viewpoint breaks, didn’t see anyone going up but started to get busy on the way down. Some small uphill bursts throughout and then gets decently steep at the very end - definitely had me panting and grumbling to myself but then the view is awesome at the top. My dog (80lb) had a blast. Lots of shade, VERY green after all the rain, no ice, and pretty wildflowers! Beautiful way to spend a morning.

This hike is moderate to hard as it’s uphill the whole time but is short in distance! The views at the top are totally worth it. Some steep parts make it a little tricky for my dog but she made it. Love doing this hike and running the road part back down (about 2/3 of the way back down)!

opening screen says trail is moderate, but then once inside the specific trail it says hard(which is way more accurate). But that being said, absolutely gorgeous hike! the view is absolutely stunning!

Awesome hike with the pup!

Great hike for the dogs- lots of shady spots and beautiful views.

Cute hike! Last bit gets your heart pumping. Love the view of Boulder.

Hiked on 5/20. It was a cloudy day so we didn’t get any views, but it was still fun! The trail was muddy but passable. Not a fly in sight. Met lots and lots of friendly puppers!

Nice quick hike, pretty rocky with some steeper sections. Decent view at the top, though it was cloudy so it might be better when it’s clear. Lots of people and dogs were out on a Sunday morning.

This trail kicked my butt. Bear canyon trail was really scenic. The nats or flies were terrible. I couldn’t even get a photo at the top they were so bad. I hiked the West ridge and came back down the same way. Fourth hike of the season I just wasn’t prepared. I could barely walk by the time I reached my car. I have done bear peak from fern canyon before. It seemed much easier than coming in from the West. All in all it was a good hike and am glad I did it. 5/17/18

Trail was packed with people as expected. This hike is okay for a starter hike to season but not my favorite. Did this on 5/7/18. It always seems harder than expected too.

6 days ago

Hiked this on 5/8/18 it was amazing! The weather was great and the views perfect

This was our first hike since moving to Colorado, and we LOVED it! Definitely has some trickier parts, with climbing up rocks, but it was a really fun, rewarding hike. It was foggy when we did it, so we didn’t get to see the view from the top, but we’re definitely going to make this hike again.

6 days ago

Great casual hike. Not too hard and not many steep inclines.

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