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

Biking Map
VIEW FULL MAP

Beautiful trail. In my opinion it's a moderate hike, nothing too challenging. The scenery is just magnificent, but the trail is not always marked very well. i started on a Saturday, 7 a.m. There were very few cars in the (pretty big) parking lot. After my return at 11 a.m., there were still quite a few spots available.

beautiful hike!!! loved that all dogs must be on leash or risk $300 fine no exceptions. For those of us with tricky dogs this was a wonderful find!!

go counter clockwise! It still has some steep climbs but it will help you avoid climbing the steep stairs.

loved the water and lots of trees! great hike! will definitely be back

got there at 10 am on Friday plenty of space in the parking lot.

Beautiful trail. Well maintained and well marked with benches placed along the trail. As other reviews mentioned as a hiker you constantly have to step off of the trail for MTBs.

easy, with some nice views

mountain biking
16 days ago

A great trail! Beware that they modified the Walker Loop - I ended up walking up to another trailhead and taking another trail to meet back up with the Walker loop. Follow the "New Access" signs to save yourself some.e energy!

This hike is absolutely gorgeous! Watch for the mountain bikers. Crazy route but well worth it.

Loved how many hidden routes there. Loved the technicality and how steep it was. Great find!

A favorite!!!

mountain biking
29 days ago

This was a pretty and fun ride but it is definitely rated wrong. I got here thinking this would be a green level ride and the exact trail shown is mostly blue with some black, we walked our bikes for a good portion of the up hill and some of the down hill because it was way too steep! Overall a good ride but I wouldn’t bike it again.

Awesome trail! I would recommend doing this backwards from what is shown on here, as the “back half” is much more fun and up and down. The “front half” on this map is very much the same, sloping downhill the entire time. The lookout point is also great. Great trail for running, biking, the lot! Should be rated more difficult than it is - the evergreen mountain trail is shorter and follows nearly the same route but is shorter, and it is rated as “hard.” This, however, is longer and somehow rated “easy.”

hiking
1 month 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".

Good long trail. Ran in to a herd of 12 elk, and also saw a mile deer. Took part of the Rooney trail through the valley as well.

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. :)

hiking
1 month ago

Horse poop everywhere. I don’t think the hike is worth the $10 to get in.

It’s a very nice trail !!

hiking
1 month ago

It’s a very nice trail !!

hell yes

The trails are well marked and beautiful scenery. This is one of my favorite trails to go on. However, I would suggest to get there early as the parking lot gets full & it’s a very popular hike.

hiking
1 month ago

One of my go-to trails in the Boulder area with great views of Boulder creek! I definitely second the other reviewers - we were tracking our miles and ended up walking around 8.2 miles total so be aware of the added distance. I've done both the clockwise and counterclockwise route and would definitely say counterclockwise is the way to go if you're looking for an easier go with less steep terrain. Be aware that there will still be some steep parts, even on the counterclockwise route.

mountain biking
1 month ago

This trail is a good workout. Trail had a few other bikers, a couple of runners, and a few hikers. The route consists of a lot of road and a fair amount of single track. The single track rewards you with some fun technical stuff and the roads allow you to take it a little easier. I’m from Texas so some of the climbs are steeper and longer than I’m used to but nothing too serious. Come out and enjoy.

Once again you can never tell what the rating system AllTrails uses.i would say the rating of moderate doesn’t seem to fit. I would rate the climb in to be difficult. The distance to be easy and the descent technically challenging. Morning rides are less packed and 5pm everyone and their brother/sister hits it after work. High traffic for sure on weekends and evening. I’ve seen lots of people carrying their bikes up hill and going ass over apple cart on the descent. Some may say it’s the line you take. There is some truth tho that.
I would tell my friends to ride it in the morning. that it’s lots of fun on the down hill and the climb is a challenge. It’s a trail short enough to do laps. Enjoy!!!

I absolutely love this trail. Wide open plains, trails around the foothills and narrow trails through the trees up into the mountains. Riding through the foothills of Lyons is just so beautiful. I heard watch for rattlesnakes on the rocks by the trails but haven’t see any. I love it here!
IMO horses need boots or shoes for sure through some of the really rocky areas. It’s mostly smooth sailing but I still wouldn’t go without them. Parking for trailers is an easy pull through.
GPS to the trailhead was off for me it was about a mile further up ahead on the right. Almost missed the turn into the trailhead. Because I thought I had past it. I pinned it for the next time. Watch out for trail closures on the website before heading out. Closes a lot because of muddy trails after a rain. Approx 9 miles. Happy Trails!

hiking
2 months ago

Amazing, but long hike. Beautiful views and diverse scenery. One of my favorite Boulder hikes.

This hike is actually more like 8.3 miles. Took us 3:15, hiking at a pretty good clip. Very pretty. Bring water.

I've been here multiple times & it's one of my favorite hikes in Boulder. South Boulder Creek is a great place to take a break for picture taking or have a lunch/snack or just take in the beautiful scenery. I tracked it at 7.6 miles. Beware...don't leave wallets or purses in your car! When I was getting out of my car, an older couple warned me that their window got broken & a wallet was stolen!

trail running
2 months ago

Going left: nice declines!! 7.8 miles. Not difficult :)

love this loop and have done it with my dog multiple times. My only concern would be that I don't believe it's only 7.3 miles. my fitbit eve time has put it closer to 8.5-9, just a heads up!

Easy hike up Mount Muhly and recommend for everyone!

Load More