2003. EROS Data Center, Geological Survey (U.S), American Geological Institute, and Environmental Systems Research Institute (Redlands, Calif.). This datalayer is a polygon coverage representing hydrologic drainage basins located worldwide. The data displayed here is derived from the HYDRO 1... American Geological Institute.
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1981. Geological Survey (U.S.) and Environmental Systems Research Institute (Redlands, Calif.). U.S. Geographic Names Information System Summits represents an automated inventory of the proper names and locations of physical and cultural geogr... ESRI.
1981. Geological Survey (U.S.) and Environmental Systems Research Institute (Redlands, Calif.). U.S. Geographic Names Information System Summits represents the Federal standard for geographic nomenclature and contains information about the pro... ESRI.
2010. DeLorme (Firm) and Environmental Systems Research Institute (Redlands, Calif.). World Contours represents the 600-meter interval contour lines of the world. Esri.




