Maps showing platinum-group-element occurrences in the conterminous United States, updated as of 1993 /

Bibliographic Details
Corporate Author:	Geological Survey (U.S.)
Other Authors:	Peterson, Jocelyn A.
Format:	Government Document Map
Language:	English
Published:	Reston, VA : The Survey ; 1994.
Series:	Miscellaneous field studies ; map MF-2270.
Subjects:	Platinum ores > United States > Maps. Platinum group > Maps.

Description
Item Description:	Includes text. Insets: Northwestern California-southwestern Oregon -- East-central Oregon -- Southern Montana -- Southern Wyoming. Cartographic material.
Physical Description:	5 maps on 1 sheet ; 46 x 81 cm. or smaller, sheet 117 x 87 cm., folded in envelope 30 x 24 cm. + 1 pamphlet (55 pages ; 28 cm.).
Bibliography:	Pamphlet includes bibliographical references (pages 41-55).