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Start Over Year 1977 Place South Dakota

1. Lincoln County, South Dakota

Maps University Of Minnesota Public content
1977. United States. Soil Conservation Service. Base source: USGS 1:100,000 county base map dated 1975; interpretations derived from soil map constructed 1976.; "Projection and 10 000-metre grid ... Dept. of Agriculture, Soil Conservation Service (Washington.).

2. Minnehaha County, South Dakota

Maps University Of Minnesota Public content
1977. United States. Soil Conservation Service. Base source: USGS 1:100,000 county base map dated 1975; interpretations derived from soil map constructed 1964.; "Projection and 10,000-metre grid ... Dept. of Agriculture, Soil Conservation Service (Washington.).