Owned by Macassa Gold Mines, Ltd., Bicroft Div.
Ref.: Geological Survey of Canada Miscellaneous Report 39.
In pegmatite dykes cutting biotite gneiss and amphibolite.
"This mine was the second larges producer of uranium in the Bancroft area.
"The deposit was discovered in 1952 by G.W. Burns of Peterborough. Centre Lake Uranium Mines Limited began exploration of the deposit in 1953. By 1955 when the company was amalgated with Croft Uranium Mines Limited to form Bicroft Uranium Mines Limited, exploration work consisted of surface cuts, a 53.4-m adit and a 71.4-m shaft. The newly formed company erected a mill, sank another shaft to a depth of 562 m and brought the mine into production in 1956. From then until operations were terminated in 1963, 2,016,693 kg of U3O8 were recovered from 2,233,055 t of ore."
