http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Metallic mineral resources map of the Naknek quadrangle, Alaska
1 map ; 47 x 50 cm. on sheet 59 x 82 cm., folded in envelope to 34 x 23 cm.
compiled by Edward H. Cobb ; Department of the Interior, United States Geological Survey.
Relief shown by contours and spot heights. Depths shown by isolines.
Key to placer deposits and quadrangle index map.
Miscellaneous field studies ; map MF-442