1992. National Imagery and Mapping Agency (now National Geospatial-Intelligence Agency). This datalayer is a point coverage representing hydrographic drainage features located throughout DCW (Digital Chart of the World) geographic cover... National Imagery and Mapping Agency.
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1992. National Imagery and Mapping Agency (now National Geospatial-Intelligence Agency). This datalayer is a polygon coverage representing drainage features located throughout DCW (Digital Chart of the World) geographic coverage as of 1... National Imagery and Mapping Agency.
1992. National Imagery and Mapping Agency (now National Geospatial-Intelligence Agency). This datalayer is a line coverage representing hypsographic (contour line) features located throughout DCW (Digital Chart of the World) geographic ... National Imagery and Mapping Agency.
1992. National Imagery and Mapping Agency (now National Geospatial-Intelligence Agency). This datalayer is a polyline coverage representing hypsographic features (contour lines) located throughout DCW (Digital Chart of the World) geogra... National Imagery and Mapping Agency.
1992. National Imagery and Mapping Agency (now National Geospatial-Intelligence Agency). This datalayer is a point coverage representing hypsographic features (spot elevations) located throughout DCW (Digital Chart of the World) geograp... National Imagery and Mapping Agency.
1992. National Imagery and Mapping Agency (now National Geospatial-Intelligence Agency). This datalayer is a point coverage representing hypsographic features (spot elevations) located throughout DCW (Digital Chart of the World) geograp... National Imagery and Mapping Agency.
1992. National Imagery and Mapping Agency (now National Geospatial-Intelligence Agency). This datalayer is a polygon coverage representing hypsographic features (as elevation zones) located throughout DCW (Digital Chart of the World) ge... National Imagery and Mapping Agency.
1992. National Imagery and Mapping Agency (now National Geospatial-Intelligence Agency). This datalayer is a point coverage representing land cover features located throughout DCW (Digital Chart of the World) geographic coverage as of 1... National Imagery and Mapping Agency.
1992. National Imagery and Mapping Agency (now National Geospatial-Intelligence Agency). This datalayer is a polygon coverage representing landcover features located throughout DCW (Digital Chart of the World) geographic coverage as of ... National Imagery and Mapping Agency.
1992. National Imagery and Mapping Agency (now National Geospatial-Intelligence Agency). This datalayer is a polyline coverage representing ocean features such as reefs and maritime area limits, along with other miscellaneous features l... National Imagery and Mapping Agency.