To update my previous suggestions, I would have to include the Pine Valley in the areas not to miss when in CO. I did a configuration of the Buffalo Creek trail that stretched out to 24+ miles and there still has to be 25+ more miles of trail to ride. The camping and facilities are top notch as are the trails. If you’re heading throught the Vail Valley let me know and I can show you some of the high alpine riding of Eagle County!!!!!!