Topographic Map (technically, a Digital Raster Graphic) of UTM of UTM Zone 10.
See the file "Continental U.S. UTM zones" for the area of the US covered by
zone 10.

A Digital Raster Graphic (DRG) is a digitally scanned image of a USGS topographic 
map. As with the paper topographic maps, DRG's can be used for hiking, camping, 
hunting, or other recreational activities, or combined with other digital map data.

The images are served by TerraServer, a cooperative research project between 
Microsoft and the USGS: http://terraserver.microsoft.com
