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Reconnaissance geologic map of the Norton Bay quadrangle, Alaska
1 map : color ; 45 x 58 cm., on sheet 74 x 78 cm., folded in envelope 30 x 24 cm.
by John T. Cass ; Department of the Interior, United States Geological Survey.
"Base map by Topographic Division, U.S. Geological Survey, 1948."
Includes text with bibliography, 3 index maps, and col. map.
Miscellaneous geologic investigations ; map I-286