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Geologic map of the Platoro Caldera area, southeastern San Juan Mountains, southwestern Colorado
Platoro Caldera area, southeastern San Juan Mountains, Colorado
1 map : color ; 58 x 93 cm., folded in envelope 30 x 24 cm.
Relief shown by contours and spot heights.
Includes index map and col. cross sections.
Covers areas of "Elwood Pass," "Greenie Mountain," "Jasper," "Platoro," "Red Mountain," "Summit Peak," "Summitville," and "Terrace Reservoir" 7.5ʹ quadrangles.
Miscellaneous investigations series (Geological Survey (U.S.)) ; map I-828