Griffith Mine, Bruce Lake Area, Kenora District, Ontario, Canadai

Regional Level Types
Griffith Mine	Mine (Abandoned)
Bruce Lake Area	Area
Kenora District	District
Ontario	Province
Canada	Country

Excerpt from Ontario Mineral Inventory Record MDI52K14SW00002: Griffith Mine

The Griffith Mine is a typical northern Ontario Algoma-type iron formation deposit. The iron formation is interbedded with meta-greywackes, and consists mainly of magnetite rich chert, interlayered with rare beds of hematite rich chert, locally magnetite rich biotite schist and, near diorite intrusions, recrystallized magnetite-rich chert. Hematite rich layers occur on the eastern edge of the iron formation in the north pit where several granodiorite dykes intrude and were named the Outer Massive in the mine stratigraphy.

1912: iron ore outcroppings were first identified in an OBM report.
1953: Iron Bay Mines Ltd. staked the claims.
1953-1960: Iron Bay Mines drilled 29 DDH totalling 13,062 ft.
1959: Iron Bay Mines had pilot plant tests conducted at Michigan College of Mining and Technology and in Frankfurt, Germany.
1960: Bulk samples were sent to the University of Toronto for testing to determine the amenability of ore to autogenous grinding.
1963-64: Taconite Lake Iron Co. Ltd. optioned the property and drilled 17 DDH totalling 10,126 ft.
1965: Taconite Lake took a 75-year lease on the property. Taconite Lake Iron assigned all its interest in the property to The Steel Company of Canada Ltd. (Stelco) by indenture in August. The property was named the Griffith Mine. 1966: Construction on the mine began, 10 DDH totalling 9517 ft were drilled. 1967: Iron Bay Mines Ltd. (which still held 20% interest in the property) changed their name to Calmor Iron Bay Mines Ltd.
1967-72: Stelco drilled 68 DDH totalling 17,186 ft.
1968: first shipment of pellets.
1975: Installed SL/RN direct reduction kiln.
1979: 1849 ft of dd for bank stability studies.
1986: Mine was closed in March.

Other Regions, Features and Areas containing this locality

References