1983. United States. Soil Conservation Service. Includes notes and location map. Scale 1:100,000.
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1982. United States. Soil Conservation Service. Includes notes and location map. Scale 1:50,000.
1981. United States. Soil Conservation Service. Includes notes and location map. Scale 1:50,000.
1983. United States. Soil Conservation Service. Includes notes and location map. Scale approximately 1:100,000.
1982. United States. Soil Conservation Service. Includes text and location map. Scale 1:50,000.
1984. United States. Soil Conservation Service. Includes notes and location map. Scale 1:100,000.
2006. This dataset represents the annotation for the individual polygons to display the geologic units in Arlington County, VA 2006.
2006. This dataset represents the annotation for the Potomac River that is used for the published geologic map in Arlington County, VA 2006.
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