21. 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
22. 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
23. Generalized potentiometric surface, estimated depth to water, and estimated saturated thickness of the High Plains aquifer system, March-June 2009, Laramie County, Wyoming Author/Creator: Bartos, Timothy T., compiler, author Publication/Creation: [Reston, Virginia] : U.S. Department of the Interior, U.S. Geological Survey, 2011 Resource Type: Map Access & Availability: Loading
24. Estimated 2008 groundwater potentiometric surface and predevelopment to 2008 water-level change in the Santa Fe Group aquifer system in the Albuquerque area, central New Mexico Author/Creator: Falk, Sarah E. Publication/Creation: [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, 2011 Resource Type: Map Access & Availability: Loading
25. Syria country profile Author/Creator: United States. Central Intelligence Agency Publication/Creation: [Washington, D.C.] : Central Intelligence Agency, [2011] Resource Type: Map Access & Availability: Loading
26. Geologic map of Big Bend National Park, Texas Author/Creator: Turner, Kenzie J. Publication/Creation: [Reston, Virginia] : U.S. Department of the Interior, U.S. Geological Survey, 2011 Resource Type: Map Access & Availability: Loading
27. Congressional districts of the 112th Congress of the United States, January 2011-2013 Author/Creator: U.S. Census Bureau. Geography Division Publication/Creation: [Washington, D.C.] : U.S. Dept. of Commerce, Bureau of the Census, [2010?] Resource Type: Map Access & Availability: Loading
28. Afghanistan-Pakistan northern border Author/Creator: United States. Central Intelligence Agency Publication/Creation: [Washington, D.C.] : [Central Intelligence Agency], [2010] Resource Type: Map Access & Availability: Loading
29. Geologic map of the Edwards Aquifer and related rocks in northeastern Kinney and southernmost Edwards counties, south-central Texas Author/Creator: Moore, David W. (David Warren) Publication/Creation: Denver, Colo. : U.S. Geological Survey, 2010 Resource Type: Map Access & Availability: Loading
30. Geologic and topographic maps of the Kabul South 30ʹ x 60ʹ quadrangle, Afghanistan Author/Creator: Bohannon, Robert G. Publication/Creation: [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, 2010 Resource Type: Map Edition: Version 1.0. Access & Availability: Loading