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Geologic map of the Toston quadrangle, southwestern Montana
Toston quadrangle, southwestern Montana, geologic map
1 map : color ; 115 x 80 cm., on sheet 128 x 104 cm., folded in envelope 30 x 24 cm. + sections (1 sheet ; 84 x 96 cm.)
G.D. Robinson ; Department of the Interior, United States Geological Survey.
"Base from Bureau of Reclamation Upper Missouri River Basin Survey sheets 46 and 56, 1947 and 1948."
Relief shown by contours and spot heights.
"Geology by G.D. Robinson, 1955-1958..."
Sheet 2 includes 5 col. cross sections and text with bibliography.
Miscellaneous geologic investigations ; I-486