You searched for: Author USGS National Center for EROS Remove constraint Author: USGS National Center for EROS Subject Digital elevation models Remove constraint Subject: Digital elevation models Institution Stanford Remove constraint Institution: Stanford Place Connecticut Remove constraint Place: Connecticut Place Canada Remove constraint Place: Canada
1993. USGS National Center for EROS. The North America Shaded Relief data were derived from the GTOPO30 elevation data. GTOPO30 is a global digital elevation model (DEM) with a horizon... National Atlas of the United States.