Horseshoe Lake Professional Review and Guide
"This is a long and strenuous loop through remote and untamed country. This route is about the right length for four nights out, but when considering good camping options, it works better for three nights out. If you decide on this recommended option, plan on a long last day to get back to your vehicle. If you decide on four nights, it’s an easy decision to stay at Horseshoe Lake on the third night. If you decide on three nights out but don’t want to hike 11-plus miles on the last day, bypass Horseshoe Lake and find a campsite somewhere along Rock Creek or Lake Abundance Creek.
This trip is not for the beginner or the fainthearted. It goes through the wildest, most isolated country in the Beartooths, and most of the trail is poorly maintained and, in places, hard to find. Be sure to allow extra travel time for covering rough ground and for route-finding."