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Geological Survey (U.S.)
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Boundaries
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Stanford
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United States
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Line
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1. 1:1,000,000-Scale County Boundary Lines of the United States, 2014
2014. Geological Survey (U.S.). This polygon shapefile contains the county boundaries of the United States, Puerto Rico, and the U.S. Virgin Islands. This layer was derived from t... Geological Survey (U.S.).
2. Political Boundary Lines, North America, 2004
2004. Instituto Nacional de Estadística, Geografía e Informática (Mexico), Geological Survey (U.S.), and Canada Centre for Remote Sensing. This line shapefile depicts the political boundaries of North America, including: international boundaries, provincial boundaries, state or territo... Geological Survey (U.S.).