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Red Lake Gold District

Mineralization

Red Lake, Ontario, is an historic mining centre. The region has produced more than 22 Moz of Au to date from four principal mines: Campbell Mine (Placer Dome), Red Lake Mine (Goldcorp), Cochenour-Willans Mine (Goldcorp), and the Madsen Mine (Claude Resources) (see Table below). Altogether, these four mines have produced more than 20 Moz of gold.

Two of these mines are still in operation, the Campbell Mine and the Red Lake Mine, which still can account for approximately 6 Moz of gold reserves. The grade tenors in the Red Lake region are exceptionally high for an Archean lode gold system, e.g., Goldcorp's new High Grade Zone averages 80 g/t. Goldcorp's estimated reserves are at 5.19 million contained ounces gold, in 7.26 million tonnes of ore, grading 22.24 g/t Au.

Gold Production in the Red Lake District to December 31, 2004†

Mine Years of
Production		 Ore Milled
(short tons)		 Gold Produced
Troy Ounces Ounces per Ton
Campbell 1949-Present(1) 19 265 121 10 934 557 0.568
Goldcorp (Dickenson) 1948-Present(1,2) 9 347 394 5 346 548 0.572(3)
Madsen 1938-1976, 1997(4)-1999 8 678 143 2 452 388 0.283(5)
Cochenour-Willans 1939-1971 2 311 165 1 244 279 0.538(6)
McKenzie Red Lake 1935-1966 2 353 833 651 156 0.277
Howey 1930-1941, 1957(7) 4 630 779 421 592 0.091(8)
Hasaga 1938-1952 1 515 282 218 213 0.144
Starratt Olsen 1948-1956 907 813 163 990 0.181
Berens River 1939-1948 560 607 157 341 0.281
Uchi 1939-1943 757 074 114 467 0.151
Jason (Argosy) 1934-1952 276 573 101 875 0.368
H.G. Young 1960-1963 288 179 55 244 0.192
Sachigo River 1938-1941 46 457 52 560 1.131
McMarmac 1940-1948 152 978 45 246 0.296
Gold Eagle 1937-1941 180 095 40 204 0.223
Jackson Manion 1934-1940 105 357 27 142 0.258
Red Lake Gold Shore 1936-1938 86 333 21 100 0.244
Hudson Patricia 1936-1937 11 228 1857 0.165
Buffalo 1981-1982 31 986 1656 0.052
Abino 1985-1986 2733 1397 0.511
Lake Rowan 1986-1988 13 023 1298 0.100
Mount Jamie 1976 972 377 0.388
Kostynuk Brothers 1963-1966 577 1126 1.951
Bobjo 1929 N/A 362(9) N/A
Bathurst 1927-1937 562 307 0.546
Red Summit 1935-1936 591 277 0.469
Sol d'Or 1933-1936 458 258 0.563
McFinley 1987 N/A N/A N/A
TOTAL 51,524,893 22,056,705 0.428
Notes:
(†) Source: http://www.mndm.gov.on.ca/mndm/mines/resgeol/northwest/red_lake/gold_e.asp
(1) Includes final production figures for 2004.
(2) For 1997, 1998 and 1999, no production due to strike by unionized employees.
(3) From 1970, includes production from Robin Red Lake.
(4) Includes clean up of ore and materials from the mine site.
(5) Historic grade, actual grade for 1999 was 0.14 ounce per ton gold.
(6) Includes production from Annco and Wilmar properties.
(7) Continuous production 1930 to 1941; includes 268 ounces recovered from clean up in 1957.
(8) The ore mined at Howey, before sorting totalled 5 158 376 tons.
The average production from run-of-mine ore was therefore 0.0817 ounce per ton gold.
(9) Not included in total production figure
N/A Data not available
 
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