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6 Titles Match Your Query
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1. 1990 County Boundaries of the United States [UTC_1990countyboundaries]
This data set portrays the 1990 State and county boundaries of the United States, Puerto Rico, and the U.S. Virgin Islands. The data set was created by extracting county polygon features from the ...


2. Policy Impact Codes, 1979, 1986, 1989 [USDA0025]
The "Policy Impact Code 1979, 1986, 1989" contains information on classifications for 2,443 non-metro counties (according to the 1979 definition) or 2,357 non-metro counties (according to the 1983 ...


3. GCIP Reference Data Set (GREDS), U.S. Geological Survey Open-File Report 94-388 [GCIP-GREDS]
The data sets on this compact disc are a compilation of several geographic reference data sets of interest to the global-change research community. The data sets were chosen with input ...


4. United States Environmental Protection Agency (EPA) Map of Radon Zones [EPA_RADON_MAP]
from EPA Map of Radon Zones home page: http://www.epa.gov/radon/zonemap.html The Map was developed using five factors to determine radon potential: indoor radon measurements; geology; aerial radioactivity; ...


5. Livestock County Data, from the USDA National Agricultural Statistics Service [USDA0186]
The files in this dataset provide statistical information on the production of cattle, calves, milk, hogs, pigs, sheep, lambs, wool, chickens, layers, and eggs by county. The Livestock ...


6. National Digital Soil Survey Area Coverage (NDSSAC) [USDA0207]
This dataset contains accumulated state coverages of the digital soil survey area boundaries for the U.S. Collection Organization: Natural Resources Conservation Service Collection Methodology: ...


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