Mineral resource potential map of the North Fork John Day River Roadless Area, Grant County, Oregon /

Bibliographic Details
Main Author:	Evans, James George, 1938-
Corporate Author:	Geological Survey (U.S.)
Other Authors:	Conyac, Martin D.
Format:	Government Document Map
Language:	English
Published:	Reston, Va. : The Survey, 1983.
Series:	Miscellaneous field studies ; map MF-1581-A.
Subjects:	Mines and mineral resources > Oregon > Grant County > Maps.

Description
Item Description:	Relief shown by contours and spot heights. Includes text, location map, and "index map." Title on pamphlet: Mineral resource potential of the North Fork John Day River Roadless Area, Grant County, Oregon. Cartographic material.
Physical Description:	1 map ; 38 x 56 cm., on sheet 61 x 76 cm., folded in envelope 25 x 32 cm. + 1 pamphlet (5 pages : maps ; 28 cm.)
Bibliography:	Includes bibliographical references on map and in text.