1. The thrust belt in southwest Montana and east-central Idaho Author/Creator: Ruppel, Edward Thompson, 1925- author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1984 Resource Type: Book Access & Availability: Loading
2. The thrust belt in southwest Montana and east-central Idaho : an interpretation of the leading part of the Cordilleran fold and thrust belt in southwest Montana and east central Idaho Author/Creator: Ruppel, Edward Thompson, 1925- Publication/Creation: Alexandria, Va. : For sale by the Branch of Distribution, U.S. Geological Survey Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no. 1278-1285. Access & Availability: Loading