BGCM's route consists of the former Camas Prairie Railroad's Second Subdivision line, which was in length from Spalding to Grangeville. As of 2005, only the between Spalding and Cottonwood were operated; the last of track between Cottonwood and Grangeville were removed in late 2002 and 2003. When BG&CM stepped in to operate the second subdivision line in December 2002, it was originally planning to operate the from Spalding to Craigmont, but a few weeks later decided to continue south, across Lawyer's Canyon to Cottonwood, stopping the salvage crews from going further north.