Northwest Territories (N.W.T.) Gold Bar/Brick Production - Updated December 2005 - by Ryan A. Silke ([email protected])
| Gold Mine | Total Bars | Production Years | Notes | Reference |
| Burnt Island | 12 + | 1990 | number estimated by Bill Knutsen | Personal communication with Bill Knutsen |
| Camlaren | 23 | 1963 | milled and poured at Discovery Mine | Discovery Mine Progress reports, 1963 |
| Camlaren (1) | ? | 1980-81 | poured down south?? | |
| Colomac (2) | 576 | 1990-91, 94-97 | Colomac Mill Assay logs | |
| Colomac | 25 | 1998 | cleanup ores, processed at Giant Mine | Giant Mill Assay logs |
| Con (Cominco) | 6746 | 1938-1986 | Cominco production to December 10th 1986. Mill idle for 3 year period 1943-1946. | Con Mine Records |
| Con (Nerco) (3) | 1200+ | 1986-1993 | Nerco production from December 11th 1986 to 1993 | Con Mine Records, incomplete |
| Con (Miramar) (4) | Bars #1-1078 | 1993-1999 | Miramar production, only to the time of Giant Mine acquisition end of 1999. See Note (5) for an explaination. Mill idle for 1 year period 1998-1999. | Con Mine Records |
| Con-Giant (Miramar) (5) | Bars #1079-2025 | 2000-2003 | Combined Con and Giant Mine production until Dec 3rd 2003, when the last bars containing Con production ore was poured (Bar #2025). Also includes gold recovered from arsenic and calcine wastes until December 2003. | Con Mine Records |
| Cullaton Lake (1) | ? | 1983-1985 | No known record exists. | |
| Discovery | 1542 | 1950-1968 | does not account for Jan-Apr 1969 production | Discovery Mine Progress reports, 1968 |
| Discovery | 14 | Jan-Apr 1969 | Mill burned down May 1969 | RC Mint Bullion Records |
| Giant | 11,847 | 1948-1999 | plus 313 Carbon Plant gold bars | Giant Mill Assay logs |
| Giant (Miramar) (6) | unknown | 2003-2004 | Production after Dec 3rd 2003 is Giant ore only, processed at the Con Mine mill. | |
| Lupin | ? | 1982-present | Mill idle for 1 year period 1998-1999. | |
| Mon | ? | 1990, 1992-1997 | refined in Yellowknife by Garth Eggenberger | |
| Negus (7) | 500+ | 1939-1952, 1953 | Coulson, 1950 | |
| Nose Group | 1 | 1967 | milled and poured at Discovery Mine | Northern Miner Newspaper article |
| Outpost Island | 37 | 1941-1942 | Other gold contained in concentrates. 1952 production of gold was only in concentrates. | RC Mint Bullion Records |
| Ptarmigan (Cominco) | 26 | 1942 | Ptarmigan closing report, Sept 1942; RC Mint Bullion Records | |
| Ptarmigan/Tom (Treminco) | N/A | 1986-1989 | Ore was custom milled at Giant Mine. Gold poured as part of Giant bars. | Ptarmigan Mill Assay logs |
| Ptarmigan/Tom (Treminco) | 431 | 1989-1997 | small gold bar size. Includes ore from Tom Mine. Other gold was contained in concentrates. | Ptarmigan Mill Assay logs |
| Ruth | 1 | Sept. 2nd 1942 | included in Con Mine pour #246 | Con Mine Records |
| Ruth (8) | 4 | 1959 | poured down south?? | RC Mint Bullion Records |
| Salmita | 284 | 1984-1987 | poured at Giant Mine | Giant Mill Assay logs |
| Thompson-Lundmark | 83 | 1941-1943 | RC Mint Bullion Records | |
| Thompson-Lundmark | 39 | 1947-1949 | RC Mint Bullion Records | |
| Tundra | 202 | 1964-1968 | Tundra Mill Assay logs | |
| West-Bay | 5 | 1948 | small gold bar size. | Northern Miner articles 1948 |
(1) Little or no information available. Possible data to be found at RC Mint.
(2) Colomac gold bars are from Colomac assay logs during 1997-1998. It is assumed that when Royal Oak bought the property in 1994, they carried on using the former operators gold bar inventory system. No earlier records exist to support this, but the total of 601 bars IS a fairly good production record for the life of this mine. Presuming Colomac poured 800-1000 ounce gold bricks, this number also fits in nicely with the amount of gold the mine produced (535,708 oz).
(3) Nerco-Con had poured 1177 gold bars between December 11th 1986 and December 30th 1992. No records could be found to indicate bars poured at the time of sale to Miramar Mining in October 1993.
(4) The gold bar inventory for Miramar also includes the production of 'oscars', small refined gold pieces left over from the refining process and in too small an amount to make up a normal sized gold bar. As a result of this process, gold bar production for Miramar Con-Giant would be inflated due to the presence of oscar production (which constitutes about 1/5 of physical pours).
(5) The Giant Mine was purchased by Miramar Mining late 1999, and production of ores from Giant began early in 2000 using the Con milling plant. Since gold product is amalgamated during the recovery-gold pour process, the Con-Giant operation years 2000-2003 are reported elsewhere to clarify that Miramar gold bar production was the product of the two mines, not just Con Mine.
(6) Mining of Con Mine ores ceased November 28th 2003, and the last gold pour containing Con Mine ores was on December 3rd 2003 (Bar #2025). Milling of Giant ores until July 2004. Includes production of gold from Con Mine arsenic and calcine wastes processed in the autoclave. Gold recovery of Con Mine wastes continued until December 2004, but no information on gold pours is available.
(7) According to a geological report by Coulson in 1950, Negus poured it's 500th gold bar in June 1950. Records of the RC Mint indicate that only 289 gold bars were bought from Negus between 1939 and 1952, with 2 additional bars poured at Negus during final cleanup in 1953. It is possible that not all of the bars poured by Negus were sold to the RC Mint, and no mine records exist to support a definitive number of gold bars poured at the mine.
(8) No refinery operated at the Ruth Mine, therefore it is not known where these gold bars were produced.