This map was produced with Digital Line Graph (DLG) data available from the U.S. Geological Survey EROS Data Center.
U.S. Department of the Interior | U.S. Geological Survey
URL: http://geochange.er.usgs.gov/sw/resources/sw_basemap/
Page Contact Information: ESD Web Team
Page Last Modified: Fri 28-Nov-2003 8:52:48 MST
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