I hiked the Cimarrona trail from the trailhead to the junction of Hossick Creek Trail (mile 6.5). The first mile or two is fairly easy, after that is several miles of switchbacks that are moderately steep, though they are long and wind through varied landscapes, becoming increasingly alpine as you progress, so you have some interesting stuff to look at as you climb several thousand feet up from the trailhead. As of this review there are at least 20 large deadfalls on the trail, including some that are very difficult to get around if you are carrying a pack. Overall a good hike with some beautiful view of the local peaks and William's creek reservoir.