1980. United States. Soil Conservation Service. Base source: USGS 1:100,000 county base dated 1977; interpretations derived from soil map constructed 1967.; "Projection and 10,000-meter grid tick... Dept. of Agriculture, Soil Conservation Service (Lanham, Md.).
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1977. United States. Soil Conservation Service. Universal Transverse Mercator projection; 1927 North American datum.; July 1977.; Indexed. 92 x 112 centimeters Scale 1:50,000. Dept. of Agriculture, Soil Conservation Service (Washington.).
1977. United States. Soil Conservation Service. Base source: USGS 1:100,000 county base map compiled in 1975; interpretations derived from soil map constructed 1964.; "Projection and 10,000-metre... Dept. of Agriculture, Soil Conservation Service (Washington.).
1980. United States. Soil Conservation Service. Base source: USGS 1:100,000 county base dated 1977; interpretations derived from soil map constructed 1970.; "Projection and 10,000-metre grid tick... Dept. of Agriculture, Soil Conservation Service (Washington.).
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.).
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.).
1980. United States. Soil Conservation Service. Shows land use.; Includes vicinity map.; "February 1980 base 4-R-37195." 82 x 71 centimeters. The Service (Fort Worth, Tex.?).
1981. United States. Soil Conservation Service. Shows land use.; Includes vicinity map.; "November 1979, base 4-R-37281." 72 x 98 centimeters. The Service (Fort Worth, Tex.?).
1981. United States. Soil Conservation Service. Shows land use.; Includes vicinity map.; "January 1981 base 4-R-33861." 60 x 87 centimeters Scale approximately 1:100,000. The Service (Temple, Tex.?).
1981. United States. Soil Conservation Service. Shows land use.; Includes vicinity map.; "April 1979 base 4-R-37064." 84 x 63 centimeters. The Service (Washington, D.C.?).