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Geologic map of the northwest part of the San Francisco Volcanic Field, north-central Arizona
San Francisco volcanic field, north-central Arizona, geologic map
2 maps ; 79 x 94 cm., sheets 124 x 101 cm. and 139 x 99 cm. folded in envelope 30 x 24 cm.
map A. Geology -- map B. Basalt types, magnetic polarities, and sample localities.
Department of the Interior, U.S. Geological Survey ; by Edward W. Wolfe, George E. Ulrich, and Christopher G. Newhall.
Relief shown by contours and spot heights.
Includes text, bibliography, tables, inset index map to township and range boundaries, location map and diagram.
Miscellaneous field studies ; map MF-1957