The traverse follows the main ridgeline of the Bitterroot Mountains, a subrange of the Bitterroot Range. For most of its length, the crest is also the border between Montana and Idaho. The main ridgeline includes over 30 peaks (following the 300’ prominence convention), most of which are unnamed. The ridgeline proper is roughly 111 miles, with approximately 55,000 feet of vertical gain. With the exception of the first 7 miles and the last 5 miles, the Bitterroot Traverse is entirely off-trail, with extended class 3 sections, as well as fourth and fifth class climbing.
For a detailed description of the route see this trip report.