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Rural-Urban Continuum Codes 2013
Data from the USDA Economic Research Service on the 2013 Rural-Urban Continuum Codes. The codes form a classification scheme that distinguishes metropolitan counties by the... -
Marine Protected Areas Inventory
NOAA's Marine Protected Areas Inventory (MPA Inventory) describes all MPAs in U.S. waters, specifying where they are and what they do. This comprehensive geospatial database...