http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Metallic mineral resources map of the Bettles quadrangle, Alaska
compiled by Edward H. Cobb ; Department of the Interior, United States Geological Survey.
Relief shown by contours and spot heights.
Includes location map and index to deposits.
"Interior-Geological Survey, Washington, D.C.-1958-NS, M R 4695."
Miscellaneous field studies ; map MF-387