Mineral Resources Program

Figure 1 - Geologic map of central Colorado generated using the USGS MMineral Resources On-Line Spatial Data Web site, http://mrdata.usgs.gov/. Users are able to determine individual map units. The unit Yp, in the central part of the map, represents rocks of the Pike's Peak batholith.
Return to article: Got a computer? You too can prepare custom-made maps.
![]()