Toronto: Province of Ontario Department of Mines, c.1933. Notes: A large-scale and detailed geological map of Central Ontario during the early 20th century. The map focuses on the Districts of Cochrane, Sudbury and Timiskaming. The map shows major cities, roadways, and railways. However, the major focus is showing deposits of.....
Refine search resultsSkip to search results
Results 1 - 1 (of 1)