You will need a high clearance vehicle to access this trailhead, possibly a 4WD vehicle in early spring when the creeks are flowing high. You will turn at the rest stop and continue going through the cattle guard. Veer right at the first crossing, then left at the second crossing where the road will get rougher. We parked a few hundred feet before the trail starts. Like other trails in this wilderness, there doesn't seem to be any maintenance. Some parts are washed out or overgrown, so we had downloaded the topo map to keep on trail. You see cool rock formations on this short hike though! There some phyllite and I think sandstone. The trail eventually ends ~2.5 miles in where you have excellent views of Santa Rosa peak. From what I've read from peakbaggers, this is the shortest route to summit the peak but you have to bushwhack it from this trail. The aspens in the fall were pretty, and I'm sure when there's snow on Santa Rosa Peak, it's beautiful!
Turn on the N. Rebel Creek road, not the south one or you'll enter Rebel Creek Ranch property! Technically the trail begins after all the creek crossings, but it will be difficult to get a vehicle through the overgrowth. A high-clearance vehicle is necessary to access this trail. We parked right before the first creek crossing where there was a clearing next to some cattle fences. Unfortunately, grazing continues into this wilderness and on this trail so be weary of cattle. We got stuck behind some and it really slowed us down. Due to the cattle grazing and lack of use, this trail is not very maintained and is destroyed in some sections. It is pretty deserty until about 3 miles in where you turn into some aspen grove areas and where you get excellent views of Santa Rosa peak. The views are better and better as you go higher as well. There is water in the Rebel Creek, I would assume year round as we went in the beginning of September. There are some very overgrown areas where you have to bend down/crawl to get through. Be prepared to be dusty and dirty!