Preliminary report on some Northwest manganese deposits, their possible exploration and uses.
Contributors: United States. Army. Corps of Engineers.
Published: 1938
Place of publication: Portland
Language: eng
Number of pages: 91
Subjects: Manganese ores -- Northwest, Pacific.
Notes: At head of title: War Department. Corps of Engineers, U.S. Army Office of the Division Engineer. North Pacific Division.

Mimeographed.

Bibliography of all references on Oregon manganese": p. 22-27.