Dip-needle survey of Wyandotte-Winona area, Houghton county and Cherokee area, Ontonagon county /
by Kiril Spiroff.

Description

Main Author

Spiroff, Kiril, 1901-1981.

Language(s)

English

Published

[Lansing : U.S. Geological Survey], 1941.

Subjects

Copper ores > Copper ores / Michigan > Copper ores / Michigan / Ontonagon County.
Copper ores > Copper ores / Michigan > Copper ores / Michigan / Houghton County.

Note

Reproduced from type-written copy.
Cover title.

Physical Description

17 l. : 3 fold. pl. (incl. 2 maps, in pocket) ; 28 cm.

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