Great trail interconnecting Horsetooth Mountain Park, Coyote Ridge, and Devil's Backbone trail systems. Multiuse. Not too technical foothills terrain along hogbacks. Can be sandy in spots. Well signed. Watch for rattlesnakes. Larimer County website: http://www.larimer.org/parks/bluesky.htm .
Review: Super sweet flowy smooth dirt. I got out early and only saw a few bikers, 2 hikers and no horses. You can do the 15 mile out and back or take a right onto the Indian Summer loop for a challenging climb and awesome descent. Overall the trail is easy, I rated it intermediate because of some climbing, but no hike-a-bike. I ride in Boulder so it was a real pleasure to ride smooth dirt with only a few rocks. There are a variety of other trails that link from this area as well.
I was thinking while riding that it's almost a mini version of Buffalo Creek. Yes, it's that good.
Review: I'm easy to please. Loved the ride. Took Blue Sky from Horsetooth Inlet Bay. Took Rimrock east for a while then had to get back to camp. Great quick ride. Beautiful views. Loved the technical aspect of Rimrock. Can't wait to get back and re-try some of the technical rocky climbs I failed on. Was fun coming back down.
Review: Finally had a chance to ride this all the way from Devil's Backbone to Horsetooth. Fun ride! Throw in Indian Summer for a little extra challenge! I didn't see any rattlers, but heard one buzzing in the bushes as I rode by. Be careful out there!
Review: The most important thing I can say about this trail is the watch for rattlesnakes. I came upon one that was kind of aggressive and did not want to leave the trail. There are also blind corners so these two factors will have you wanting to watch your speed. Mountains do provide some shade in morning. If you go to Indian Summer, you quickly realize how hot it is out in the open.