The Main Salmon Wild and Scenic River (Long Tom Bar to Corn Creek) offers powerboat users a fun, challenging and beautiful trip through a deep and rugged canyon. The Main Salmon River travels east to west for over 80 miles bisecting both the Frank Church River of No Return and Selway Bitterroot Wilderness areas. This undammed, free flowing river contains many Class III and some Class IV rapids, depending on water level, and its whitewater characteristics change greatly over the course of the year as flows fluctuate. The Main Salmon not only offers river users the opportunity to seek solitude, but also provides a unique glimpse into the past, from prehistoric pictographs to old homesteads.