Portland Mine (S.D.)
Subject
Subject Source: Local sources
Found in 1 Collection or Record:
Homestake Geology Department Papers
Collection
Identifier: 5035
Abstract
The Homestake Geology Department Papers consist of documents, rock samples, and thin sections from 1903 to 2005. Materials include geologic, stope, diamond drilling maps and drawings; reports, correspondence, ledgers, and indexes that represent the functions and activities of the Geology Department.
Dates:
1903 - 2005