Digital Mapping Techniques '97
U.S. Geological Survey Open-File Report 97-269
Figure 2A. Enlargement of ridge line from Figure 1.
Figure 2B. Interpreted geology in the area of Figure 2A.
<https://pubs.usgs.gov/openfile/of97-269/ross2.html>
Maintained by Dave Soller
Last updated 10.07.97