1. Geologic map of the Simcoe Mountains volcanic field, main central segment, Yakama Nation, Washington Author/Creator: Hildreth, Wes, cartographer Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2015 Resource Type: Map Access & Availability: Loading
2. Geologic map of the Simcoe Mountains volcanic field, main central segment, Yakama Nation, Washington Author/Creator: Hildreth, Wes, cartographer Publication/Creation: [Reston, Va.] : U.S. Department of the Interior, U.S. Geological Survey, 2015 Resource Type: Map Access & Availability: Loading
3. Geologic map of the Three Sisters volcanic cluster, Cascade Range, Oregon Author/Creator: Hildreth, Wes, cartographer Publication/Creation: [Reston, Va.] : U.S. Department of the Interior, U.S. Geological Survey, 2013 Resource Type: Map Edition: Revised August 13, 2013. Access & Availability: Loading