Forest Road 177 (better known as Green Ridge Trail) is in the Roosevelt National Forest. It takes you from Chambers Lake near Cameron Pass most of the way to Red Feather Lake. It is not a road to be avoided by the adventurous but it IS a road to be treated with some measure of respect.
Green Ridge has been known to claim a victim or two, and there's ample video and photographic evidence around ADV.
Green Ridge is a favorite route among the local ADV gang, especially on hot summer days when getting drenched with muddy water feels refreshing.