1. Geologic map of the North Cascade Range, Washington Author/Creator: Haugerud, Ralph Albert Publication/Creation: [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, 2009 Resource Type: Map Access & Availability: Loading
2. Geologic map of upper Eocene to Holocene volcanic and related rocks in the Cascade Range, Washington Author/Creator: Smith, James G., 1939- Publication/Creation: Reston, VA : U.S. Geological Survey ; Denver, CO : For sale by U.S. Geological Survey, Map Distribution, 1993 Resource Type: Map Access & Availability: Loading