Geologic map of Oregon east of the 121st meridian /

Bibliographic Details
Main Author:	Walker, George Walton, 1921-
Corporate Authors:	Geological Survey (U.S.), Oregon. Department of Geology and Mineral Industries
Format:	Government Document Map
Language:	English
Published:	Reston, Va. : The Survey, 1977.
Series:	Miscellaneous investigations series (Geological Survey (U.S.)) ; map I-902.
Subjects:	Geology > Oregon > Maps.

Description
Item Description:	Relief shown by spot heights. "Geology mapped in 1959-73." Includes 3 ancillary maps and text. Ancillary maps: Tectonic map -- Index map of Oregon East of the 121st Meridian showing sources of geologic data -- Geomorphic division of Oregon. Geologic time table on ancillary sheet. Cartographic material.
Physical Description:	1 map : color ; 89 x 69 cm., on sheet 108 x 110 cm., folded in envelope 30 x 24 cm. + 1 sheet (118 x 104 cm.)
Bibliography:	Includes bibliographical references.