Base source: USGS 1:100,000 county base map dated 1975; interpretations derived from soil map constructed 1973.; "Projection and 10,000-metre grid ticks, zone 14, Universal Transverse Mercator. 25,000-foot grid ticks based on South Dakota coordinate system, south zone."; Feb. 1978.; Includes location map. 112 x 92 centimeters Scale 1:50,000
Creator:
United States. Soil Conservation Service
Publisher:
Dept. of Agriculture, Soil Conservation Service (Washington.)
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