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Hydrographic and Impairment Statistics Database: ARHO 미국
Hydrographic and Impairment Statistics (HIS) is a National Park Service (NPS) Water Resources Division (WRD) project established to track certain goals created in response to the... -
Arlington House Tract and Boundary Data 미국
These ESRI shape files are of National Park Service tract and boundary data that was created by the Land Resources Division. Tracts are numbered and created by the regional cartographic...