Topographic Map image of the San Gorgonio Pass area, Riverside County, California.
This Digital Raster Graphic (DRG) was created using
scanned U.S. Geological Survey 7.5-minute 1 to 24,000
scale maps georeferenced in Universal Transverse
Mercator (UTM) grid.  DRGs can be acquired with or
without collar information for use in Geographic Information
System (GIS) environment.  Collarless DRGs can be …