Box 1
Container
Contains 1 Result:
United States Bureau of Mines Map Collection
Collection — Box: 1
Identifier: MS-705
Abstract
Collection, before 1989, consisting of aperature cards produced by the United States Bureau of Mines. Contains microfilmed underground maps, primarily from Houghton and Keweenaw Counties, Michigan. Also includes an index for the aperature cards.
Dates:
Before 1989