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HYDRO 1K Elevation Derivative Database

The Earth Resources Observation Systems' Data Center at the US Geological Survey developed this database from the 30 arc-second digital elevation model of the world. The database contains six raster data sets in tar file format: elevation data, shaded relief, slope, aspect, flow direction, and flow accumulation; and two vector data sets in tar or gzipped ARC/INFO Export file formats: drainage basins and streams.
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Date Issued 1998-
Scout Publication
Date of Scout Publication 1998-02-18
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