Description: Metallic mineral resources map of the Trinity Islands quadrangle, Alaska

Main Author:	Cobb, Edward H. 1916-1983.
Other Authors:	Geological Survey (U.S.)
Format:	Map
Language:	English
Published:	[Reston, Va.] : The Survey, 1972.
Physical Description:	1 map ; 47 x 52 cm on sheet 58 x 81 cm, folded in envelope 34 x 23 cm.
Series:	Miscellaneous field studies ; map MF-468.
Subjects:	Mines and mineral resources -- Alaska -- Maps. Ore deposits -- Alaska -- Maps. United States -- Trinity Islands Quad. United States.

Item Description:	Relief shown by contours and spot heights. Depths shown by bathymetric isolines. Includes inset of Chirikof Island (1:24,000 ; W 15600̊'--W 15530̊'/N 5600̊'--N 5545̊'), location index map, key to placer deposits, and explanation of map units. "Base by the U.S. Geological Survey, 1952." Includes bibliographical references. In English.
Physical Description:	1 map ; 47 x 52 cm on sheet 58 x 81 cm, folded in envelope 34 x 23 cm.
Bibliography:	Includes bibliographical references.