1. Detailed cross sections of the Eocene Green River formation along the North and East margins of the Piceance Basin, western Colorado, using measured sections and drill hole information Author/Creator: Johnson, Ronald C. 1950- (Ronald Carl), cartographer Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2014 Resource Type: Map Access & Availability: Loading
2. Bedrock geologic map of the Spring Valley, West Plains, and parts of the Piedmont and Poplar Bluff 30' x 60' quadrangles, Missouri, including the upper Current River and Eleven Point River drainage basins Author/Creator: Weary, David J., cartographer Publication/Creation: Reston, VA : U.S. Department of the Interior, U.S. Geological Survey, 2014 Resource Type: Map Access & Availability: Loading
3. Bedrock geologic map of the Grafton quadrangle, Worcester County, Massachusetts Author/Creator: Walsh, Gregory J. Publication/Creation: [Reston, Va.] : U.S. Geological Survey ; Denver, Colo. : For sale by U.S. Geological Survey, Information Services, 2011 Resource Type: Map Access & Availability: Loading
4. Geologic map of the Bailey 30ʹ by 60ʹ quadrangle, north-central Colorado Author/Creator: Ruleman, C. A. (Chester Allan), cartographer, writer of added text Publication/Creation: Denver, Colo. : For sale by U.S. Geological Survey, Information Services Resource Type: Map Access & Availability: Loading