Preliminary geologic map of the Cerro Cobachi area, Sonora, Mexico /

Bibliographic Details
Corporate Author:	Geological Survey (U.S.)
Other Authors:	Ketner, Keith B., 1921-2019, Noll, John H.
Format:	Government Document Map
Language:	English
Published:	Reston, Va. : The Survey ; 1987.
Series:	Miscellaneous field studies ; map MF-1980.
Subjects:	Geology > Mexico > Sonora (State) > Maps.

Description
Item Description:	Relief shown by contours and spot heights. "Geology by John H. Noll, Jr., 1979-80, and Keith B. Ketner, 1983-85." Includes text, bibliography, table, cross section, and location map. Cartographic material.
Physical Description:	1 map ; 36 x 44 cm., on sheet 86 x 64 cm., folded in envelope 30 x 24 cm.