2012. Rukstales, Kenneth S. (compiler). This polygon shapefile represents seismic hazards in the United States. The data represent a model showing the probability that ground motion will ... National Atlas of the United States.
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2005. Geological Survey (U.S.). This point shapefile contains the locations and attributes of significant, historic earthquakes that caused deaths, property damage, and geological... National Atlas of the United States.
1980. United States. Soil Conservation Service. "Base compiled from U.S.G.S. quadrangle sheets and county highway map, polyconic projection."; "50,000 foot grid ticks based on the Texas state pla... The Service (Fort Worth, Tex.).
1981. United States. Soil Conservation Service. Shows land use.; "Issued 1982."; Includes vicinity map.; "August 1981 base 4-R-34963." 56 x 86 centimeters 1:100,000. USDA-SCS (Fort Worth, Tex.).
1981. United States. Soil Conservation Service. Shows land use.; Includes vicinity map.; "December 1980 base 4-R-37584." 38 x 58 centimeters. USDA-SCS (Fort Worth, Tex.).
1981. United States. Soil Conservation Service. Shows land use.; Includes vicinity map.; "February 1981 base 4-R-33865." 66 x 76 centimeters. The Service (Fort Worth, Tex.?).
1981. United States. Soil Conservation Service. Shows land use.; Includes vicinity map.; "4-R-36538." 61 x 72 centimeters 1:100,000. The Service (Fort Worth, Tex.?).
1980. United States. Soil Conservation Service. Shows land use.; Includes vicinity map.; "February 1980 base 4-R-37246." 58 x 98 centimeters. USDA-SCS (Fort Worth, Tex.).
1981. United States. Soil Conservation Service. Shows land use.; Includes vicinity map. 70 x 62 centimeters. The Service (Fort Worth, Tex.?).
1981. United States. Soil Conservation Service. Shows land use.; Includes vicinity map. 45 x 57 centimeters. USDA-SCS (Fort Worth, Tex.).