DescriptionRed Mountain, in the Scapegoat Wilderness, is named for its outcrop of red sediments composed of argillites, siltites, and quartzite. Also exposed are lighter-colored limestones. This is one of 3 Red Mountains in Lewis and Clark County, and 11 statewide. Contributing InstitutionMontana Historical Society Library and ArchivesGeolocation[1] Elevation9411 ft.CountyLewis and Clark County