"Orthophotograph prepared from 1:80,000-scale aerial photograph taken January 19, 1976." "This quadrangle area also covered by 1:24,000-scale topographic map." "AMS 5153 1 NW-SERIES V042." "7.5x15 minute series othophotoquad." Includes quadrangle location. Available also through the Library of Congress Web site as a raster image.
Geological Survey (U.S.)
1978
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