Briar Hill Mine (Norway, Mich.)
Found in 1 Collection or Record:
Scope and Contents Note This collection consists of one blueprint design of a mine shaft for the Briar Hill Mine. The blueprint includes a detailed list of supplies and labor required to sink the shaft. Information includes cost of labor, timber, explosives, cost of fuel, hoistings, blacksmithing and supplies. The shaft was expected to reach a depth of 1,200 feet and take two years for construction. The blueprint is signed by "Captain William Bond" and dated 1911.