1. Geology of the Bighorn Canyon-Hardin area, Montana and Wyoming Author/Creator: Richards, Paul W. 1918-2013, (Paul William), author Publication/Creation: [Washington, D.C.] : United States Department of the Interior, Geological Survey, 1955 Resource Type: Book Access & Availability: Loading
2. Geology of the Bighorn Canyon-Hardin area, Montana and Wyoming : a description of the geography, stratigraphy, structure, geomorphology, and mineral resources of the area Author/Creator: Richards, Paul W. 1918-2013. (Paul William) Publication/Creation: Washington [D.C.] : U.S. G.P.O., 1955 Resource Type: Book Access & Availability: Loading
3. Guide book, Big Horn basin-Yellowstone valley tectonics field conference August 3-5, 1937 Author/Creator: Rocky Mountain Association of Geologists Publication/Creation: [Billings] : [Planographed by W. W. Gail], [1937] Resource Type: Book Access & Availability: Loading