41. Mineral commodity summaries Publication/Creation: [Washington, D.C.?] : U.S. Dept. of the Interior, Bureau of Mines, 1978- Resource Type: Journal, Newspaper or Serial Access & Availability: Loading
42. Silver in ... Publication/Creation: Reston, VA : U.S. Dept. of the Interior, U.S. Geological Survey Resource Type: Journal, Newspaper or Serial Access & Availability: Loading
43. Potentiometric surface and water-level difference maps of selected confined aquifers in Southern Maryland and Maryland's eastern shore, 1975 ... Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Reston, Va.] : U.S. Department of the Interior, U.S. Geological Survey Resource Type: Map Access & Availability: Loading
44. Townsend quadrangle, Virginia : 7.5-minute series Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Reston, Va.] : U.S. Department of the Interior, U.S. Geological Survey, 2011- Resource Type: Map Access & Availability: Loading
45. Sources and preparation of data for assessing trends in concentrations of pesticides in streams of the United States Publication/Creation: Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey Resource Type: Journal, Newspaper or Serial Access & Availability: Loading
46. Millington quadrangle, Tennessee : 7.5-minute series Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Reston, Va.] : U.S. Department. of the Interior, U.S. Geological Survey, 2010- Resource Type: Map Access & Availability: Loading
47. Fort Belvoir quadrangle, Virginia--Maryland : 7.5-minute series Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Reston, Va.] : U.S. Department of the Interior, U.S. Geological Survey, 2011- Resource Type: Map Access & Availability: Loading
48. Annual report of the National Earthquake Hazards Reduction Program Author/Creator: National Earthquake Hazards Reduction Program (U.S.) Publication/Creation: [Gaithersburg, Md.] : National Institute of Standards and Technology Resource Type: Journal, Newspaper or Serial Access & Availability: Loading
49. North Virginia Beach quadrangle, Virginia : 7.5-minute series Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Reston, Va.] : U.S. Department of the Interior, U.S. Geological Survey, 2010- Resource Type: Map Access & Availability: Loading
50. Hazards data distribution system (HDDS) explorer Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Reston, Va.] : USGS, [2014]- Resource Type: Map Access & Availability: Loading