1995. National Geospatial-Intelligence Agency. This datalayer is a polyline coverage representing contour lines located throughout current VMap1 geographic coverage areas. This layer was derived...
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1995. National Geospatial-Intelligence Agency. This datalayer is a point coverage representing Control Points or Control Stations located throughout current VMap1 geographic coverage areas. Feat...
1995. National Geospatial-Intelligence Agency. This datalayer is a point coverage representing named locations of elevation text label points located throughout current Vmap geographic coverage ...
1995. National Geospatial-Intelligence Agency. This datalayer is a polygon coverage representing Elevation Void Collection Area or areas lacking suitable source coverage, or where data is not re...
1995. National Geospatial-Intelligence Agency. This datalayer is a point coverage representing spot elevations located throughout current VMap1 geographic coverage areas. Features in this layer ...