The Two Rivers History.net website explores and celebrates the area around the confluence of the Clark Fork and Blackfoot Rivers. The area is flanked by mountain ranges and peaks: Bonner Mountain, in the Garnet Range, towers above its namesake community and Piltzville; across the Blackfoot River to the west is Woody Mountain of the Rattlesnake Range rises above West Riverside and Pine Grove; and across the Clark Fork to the south is Mount Sentinel and University Mountain, part of the Sapphire Range.