Question: Which mine began operation first, Colomac Mine or Northland Pyrite Mine?

Context paragraphs:
Løkken Mine: The Løkken Mine is and underground pyrite mine located in the municipality of Meldal in Sør-Trøndelag, Norway.  The mine was operative from 1654 to 1987, from the mining community Løkken Verk.  It contained the largest deposits of its kind in Norway.  Between 1654 and 1845, a total of 11,300 tons of copper was produced from the mine.  From 1904 the mine was run by the company Orkla Grube-Aktiebolag, and until 1987 a total of 24 million tons of pyrite was produced from the mine.  In addition to sulphur, the pyrite contained about 2% copper, in addition to zinc and traces of silver and gold.  The products were originally transported to the sea by horse and sledge during winter time.  From 1908 the ore was transported by the Thamshavn Line, which was the first electrical railway line in Norway.  The annual production was about 350,000 tons of ore during its final years.

Lousal mine: Lousal mine was a pyrite mine in Portugal.  The mine was opened in 1900 and closed in 1988.

Colomac Airport: Colomac Airport (TC LID: CFY8) , was located near Colomac Mine in the Northwest Territories, Canada where caribou may be found on the runway.  Prior permission was required to land except in the case of an emergency.

Cabin Branch Pyrite Mine Historic District: Cabin Branch Pyrite Mine Historic District is a national historic district located at Prince William Forest Park, Triangle, Prince William County, Virginia.  It encompasses 4 contributing sites and 42 contributing structures associated with the Cabin Branch pyrite mine.  The pyrite mine opened in 1889, and remained in operation until 1919 or 1920.  The property includes a number of capped mine shafts, and the remains of a commissary building and an old mill; and mine structures, including crusher house, mill, mechanical and support buildings, numerous rail lines.

Victor Diamond Mine: The Victor Diamond Mine is the first Canadian diamond mine located in Ontario, and De Beers' second diamond mine in Canada (after the Snap Lake Diamond Mine).  It is located in the Northern Ontario Ring of Fire, in the James Bay Lowlands 90 km west of Attawapiskat in the remote northern part of the province.  In June 2005, the Attawapiskat First Nation voted in favour (85.5%) of ratifying the Impact Benefit Agreement (IBA).  Construction of the mine began in February 2006 which created 3200 positions; mining and operations will create around 400 permanent positions.  The Victor Mine is an open-pit mine, with a processing plant, workshops, and an airstrip located on site.  By 2013-2014 royalties collected from De Beers Victor Diamond Mine amounted to $226.  At that time De Beers was continuing to pay off its "$1 billion investment to build the mine and from now until it closes, the company expects to pay tens of millions of dollars in royalties."

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.

Northland Pyrite Mine: The Northland Pyrite Mine, also known as James Lake Mine, Rib Lake Mine, Harris Mine or simply Northland Mine, is an abandoned underground mine in Northeastern Ontario, Canada, located on the southwestern shore of James Lake in Best Township of Temagami.  It was operated by the Northland Mining Company during the early 1900s with the construction of a 91 m shaft and many open-cuts north of the shaft.  Minerals present at the mine include chalcopyrite, pyrite and pyrrhotite, deposited in Precambrian volcanic rock of the Canadian Shield.

Vulture Mine: The Vulture Mine was a gold mine and settlement in Maricopa County, Arizona, United States.  The mine began in 1863 and became the most productive gold mine in Arizona history.  From 1863 to 1942, the mine produced 340,000 ounces of gold and 260,000 ounces of silver.  Historically, the mine attracted more than 5,000 people to the area, and is credited with founding the town of Wickenburg, Arizona.  The town that served the mine was known as Vulture City.

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.

Stonehills Mine: Stonehills Mine is the first completely new mine on Portland (not a mine as an extension from an existing quarry).  Albion Stone Plc began the process to open this mine began in 2015 and reserves are estimated to last for 50 years (2066).  The planning application to begin work on Stonehills was submitted to the Dorset County Council in February 2001 and was finally approved in February 2005.  The site is owned by the Crown Estate and the leased by Albion Stone plc who extract Portland Stone Whitbed and Portland Stone Basebed.  Albion Stone Plc use room and pillar mining method of extraction which is already being carried out in their Jordans mine and Bowers Mine.

Supporting paragraphs: Colomac Mine Northland Pyrite Mine
Answer: Northland Pyrite Mine