1. Biostratigraphic data from Upper Cretaceous formations--eastern Wyoming, central Colorado, and northeastern New Mexico Author/Creator: Merewether, E. A. 1930- (Edward Allen) Publication/Creation: [Reston, VA] : U.S. Dept. of the Interior, U.S. Geological Survey, 2011 Format: Map Access & Availability: Loading
2. BLM Colorado surface management status maps Author/Creator: United States. Bureau of Land Management, cartographer Publication/Creation: [Lakewood, Colorado] : U.S. Department of the Interior, Bureau of Land Management Format: Map Access & Availability: Loading