Question: Which mine opened first, Ptarmigan and Tom Mine or Lupin Mine? 

full_context: Document 1: Meadowbank Gold Mine: The Meadowbank Gold Mine is an open pit gold mine operated by Agnico-Eagle Mines in the Kivalliq district of Nunavut, Canada.
Document 2: Ptarmigan and Tom Mine: The Ptarmigan and Tom Mine were gold producers located in the Northwest Territories, Canada at Yellowknife. The property was staked by prospectors in 1936 and acquired by Cominco in 1938. The mine first produced between 1941 and 1942 but closed due to wartime restrictions. The old property was demolished in 1969–1970. A new company, Treminco Resources Limited, reopened the workings in 1985 and production from the Tom ( ) portal began in 1986 with material being trucked to Giant Mine. The old Ptarmigan ( ) mine shaft was dewatered and production began in 1987. A new mill was built at the property and was operational in July 1989. Low gold prices forced the company to close the mines in 1997. Total gold production has been approximately 120,000 troy ounces (3700 kg).
Document 3: Beaulieu Mine: The Beaulieu Mine was a post-World War II gold mining operation near Yellowknife, Northwest Territories. It entered production in October 1947, but by the end of November only 7 troy ounces (220 g) of rough gold were recovered. Additional gold was recovered during 1948, but altogether the mine recovered only 30 troy ounces (930 g) of fine gold. The operation folded in chaos and bankruptcy.
Document 4: Kemess Mine: The Kemess Mine was an open-pit copper and gold mine, located just northeast of the foot of Thutade Lake, at the head of the Finlay River, in the Omineca Mountains of the Northern Interior of British Columbia, Canada. It was operated by Royal Oak Mines from 1998 to 1999, when it was bought by Northgate Minerals. Northgate operated the mine until its closure in 2011; that year Northgate was taken over by AuRico Gold. In 2014 AuRico Gold partitioned off its portion of kemess Mine ownership creating a new company called AuRico Metals. AuRico Metals is actively implementing permits for a block caving mine.
Document 5: Kidd Mine: Kidd Mine is an underground base metal mine in the city of Timmins, Ontario, Canada. It is owned by Glencore Inc., and operated by Kidd Operations, a Glencore subsidiary. The mine was formerly owned by Xstrata Copper, Falconbridge Ltd., and Texas Gulf Sulphur. Ore from the Kidd Mine is processed into concentrate at the Kidd Metallurgical Site, located 27 km southeast of the mine, which until 2010 also smelted the ore and refined the metal produced. Following the closure of the majority of the Met Site, concentrate is now shipped to Quebec for processing. Kidd Mine is the world's deepest copper/zinc mine.
Document 6: Ruth Mine: The Ruth Mine was a small gold producer about 65 km (40 miles) east of Yellowknife, Northwest Territories. It operated briefly during 1942 and then again in 1959, extracting only 550 troy ounces (17 kg) of gold thus far. The old mine is today (2012) significant as one of the last intact abandoned mining properties from the 1940s period in the Northwest Territories, although the site was scheduled to be remediated by the federal government.
Document 7: Dvoinoye Gold Mine: The Dvoinoye Gold Mine is an underground gold mine in the Bilibinsky District of the Chukotka Autonomous Okrug of Russia. The mine is owned by Canadian mining company Kinross Gold and is approximately 100 km from their Kupol Gold Mine. Originally the site of a surface mine, Kinross acquired the property in 2010, and built the underground mine at a cost of US$360-million. The mine began production in 2013.
Document 8: Colomac Mine: The Colomac Mine was a privately owned and operated open pit gold mine located 220 km northwest of Yellowknife in the Northwest Territories in Canada . The Colomac mine operated between 1990–1992, and 1994–1997. It was operated by Neptune Resources Limited that had little success in making a profit during its operation. In 1994, the mine had reopened under Royal Oak Mines Inc. Both Neptune Resources and Royal Oak Mines where both owned and operated by Peggy Witte. Due to low gold prices and high cost of mining, Royal Oak Mines was forced into bankruptcy. The Federal Government of Canada became owners of the mine, along with the related environmental issues. A major cleanup effort is under way to prevent the mine from polluting the environment, but this might be too late at this stage. This mine is now owned and controlled by the Indigenous and Northern Affairs department of the Federal government, while Public Works and Government services is the current contracting authority.
Document 9: Ptarmigan and Tom Mine: The Ptarmigan and Tom Mine were gold producers located in the Northwest Territories, Canada at Yellowknife. The property was staked by prospectors in 1936 and acquired by Cominco in 1938. The mine first produced between 1941 and 1942 but closed due to wartime restrictions. The old property was demolished in 1969–1970. A new company, Treminco Resources Limited, reopened the workings in 1985 and production from the Tom ( ) portal began in 1986 with material being trucked to Giant Mine. The old Ptarmigan ( ) mine shaft was dewatered and production began in 1987. A new mill was built at the property and was operational in July 1989. Low gold prices forced the company to close the mines in 1997. Total gold production has been approximately 120,000 troy ounces (3700 kg).
Document 10: Thompson-Lundmark Mine: The Thompson-Lundmark Mine was a gold producer in the periods 1941–1943 and 1947–1949, near Yellowknife, Northwest Territories. Gold was discovered here in 1938 by Fred W. Thompson and Roy Lundmark; they staked 46 claims that were incorporated into the mine. Underground and shaft work began in 1939. The mine processed 133,989 tons of ore to produce 70,339 troy ounces (2188 kg) of gold and 13,782 troy ounces (429 kg) of silver. The abandoned site was destroyed by forest fires during 1998. A detailed history is available in the link below.
Document 11: Salmita Mine: The Salmita Mine was a gold producer in the Northwest Territories, Canada during 1983 to 1987. The deposit was first discovered in 1945 and underground exploration was carried out in 1951-1952. It was reactivated for exploration by Giant Yellowknife Mines Limited in 1975 and entered production in 1983. They used the old camp and milling plant of the abandoned Tundra Mine, located a few kilometres to the south. The mine produced 179,906 troy ounces (5596 kg) of gold from the milling of 238,177 tons of ore.
Document 12: Lupin Mine: Lupin Mine was a gold mine in Nunavut Territory, Canada. It opened in 1982 and was originally owned and operated by Echo Bay Mines Limited, who in 2003 became a fully owned subsidiary of Kinross Gold Corporation.
Document 13: Lupin Airport: Lupin Airport (IATA: YWO, ICAO: CYWO) was an airport located at Lupin Mine, Nunavut, Canada that was operated by Echo Bay Mines Limited. The airport closed sometime after the mine closed in 2005, but the runway is still present on the property.
Document 14: Negus Mine: Negus Mine was a gold producer at Yellowknife, Northwest Territories, Canada, from 1939 to 1952. It produced 255,807 troy ounces (7956 kg) of gold from 490,808 tons of ore milled. The underground workings were acquired by adjacent Con Mine in 1953 and were used for ventilation purposes until Con Mine closed in 2003.
Document 15: Camlaren Mine: The Camlaren Mine was a small gold mine 80 km north-east of Yellowknife, Northwest Territories, Canada at Gordon Lake. It consists of a property totaling about 981 hectares. The two claims that make up the property were staked in 1936 by prospectors Don Cameron and the Mclaren brothers and developed with two shafts during 1937-1938. The name "Camlaren" is a portmanteau of Cameron and McLaren. Conditions attributed to World War II halted development at Camlaren in 1939.
ground_truth: Ptarmigan and Tom Mine