Geologic map of the pre-Tertiary rocks in the eastern Aldrich Mountains and adjacent areas to the south, Grant County, Oregon /

Bibliographic Details
Main Author:	Brown, C. Ervin (Clarence Ervin), 1925-
Corporate Author:	Geological Survey (U.S.)
Other Authors:	Thayer, Thomas P., 1907-2004
Format:	Government Document Map
Language:	English
Published:	Reston, Va. : The Survey, 1977.
Series:	Miscellaneous investigations series (Geological Survey (U.S.)) ; map I-1021.
Subjects:	Geology > Oregon > Grant County > Maps. Geology > Oregon > Aldrich Mountains > Maps.

Description
Item Description:	Relief shown by contours and spot heights. Includes 2 location maps, table, text, and 3 col. cross-sections. "Geology mapped 1957-61." Cartographic material.
Physical Description:	1 map : color ; 35 x 97 cm., on sheet 71 x 102 cm., folded in envelope 30 x 24 cm.
Bibliography:	Includes bibliographical references.