You searched for: Author USGS National Center for EROS Remove constraint Author: USGS National Center for EROS Subject Imagery and Base Maps Remove constraint Subject: Imagery and Base Maps Institution Stanford Remove constraint Institution: Stanford Place Massachusetts Remove constraint Place: Massachusetts Place Delaware Remove constraint Place: Delaware Place Florida Remove constraint Place: Florida
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.