http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Metallic mineral resources map of the Trinity Islands quadrangle, Alaska
1 map ; 47 x 52 cm. on sheet 58 x 81 cm., folded in envelope 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 bathymetric isolines.
Includes inset of Chirikof Island (1:24,000 ; W 1560̊0'--W 1553̊0'/N 560̊0'--N 554̊5'), location index map, key to placer deposits, and explanation of map units.
"Base by the U.S. Geological Survey, 1952."
Miscellaneous field studies ; map MF-468