Lewisia columbiana var. columbiana (Howell) Robins. Steven R. Hill; David S. Barrington 328412000-08-06 United States, Washington, Skamania, Mount St. Helens National Monument, WA Rt. 504; drainage (valley) of the North Fork of Toutle River. Elev. ca. 4200 ft. At Johnston Ridge Overlook trails, ca. 6 miles due north-northwest of Mt. St. Helens summit. West Cascade Range & Crest Ecoregion. |