1. Potentiometric surfaces, altitudes of the tops, and hydrogeology of the Minnelusa and Madison Aquifers, Black Hills area, Wyoming Author/Creator: Geological Survey (U.S.) Publication/Creation: [Reston, Va.?] : U.S. Geological Survey, 2002 Resource Type: Map Access & Availability: Loading
2. Precambrian basement map of the Trans-Hudson orogen and adjacent terranes, northern Great Plains, U.S.A Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by U.S. Geological Survey Map Distribution Resource Type: Map Access & Availability: Loading
3. Precambrian basement structure map of the continental United States, an interpretation of geologic and aeromagnetic data Author/Creator: Sims, P. K. 1918-2011. (Paul Kibler) Publication/Creation: [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : Information Services [distributor], 2008 Resource Type: Map Access & Availability: Loading
4. Preliminary geologic map of the Bethel and southern Russian Mission quadrangles, southwestern Alaska Author/Creator: Geological Survey (U.S.) Publication/Creation: Reston, VA : U.S. Dept. of the Interior, U.S. Geological Survey, 1993 Resource Type: Map Access & Availability: Loading