Dome Mine is situated in the City of

Timmins, Ontario Timmins ( ) is a city in northeastern Ontario, Canada, located on the Mattagami River. The city is the fourth-largest city in the Northeastern Ontario region with a population of 41,145 (2021). The city's economy is based on natural resource ext ...

Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...

; and was developed during the

Porcupine Gold Rush The Porcupine Gold Rush was a gold rush that took place in Northern Ontario starting in 1909 and developing fully by 1911. A combination of the hard rock of the Canadian Shield and the rapid capitalization of mining meant that smaller companies a ...

. It is now known as part of

Newmont Newmont Corporation is a gold mining company based in Greenwood Village, Colorado, United States. It is the world's largest gold mining corporation. Incorporated in 1921, it owns gold mines in Nevada, Colorado, Ontario, Quebec, Mexico, the Domin ...

- Porcupine. The original Dome Mine (Tisdale Township) was discovered by Jack Wilson of the Harry Preston crew in 1909. Goldcorp ceased the mining operations December 31, 2017 after 107 years of production. An enormous discontinued open pit (Super Pit), huge man-made mountain of waste rock and working mill are now in place at the location. At one time a community of approximately 60 houses owned by

Dome Mines A dome () is an architectural element similar to the hollow upper half of a sphere. There is significant overlap with the term cupola, which may also refer to a dome or a structure on top of a dome. The precise definition of a dome has been a m ...

and leased to miners with families existed. This was the community of Dome. The

vein Veins are blood vessels in humans and most other animals that carry blood towards the heart. Most veins carry deoxygenated blood from the tissues back to the heart; exceptions are the pulmonary and umbilical veins, both of which carry oxygenated b ...

Preston discovered dripped with gold and was referred to as the Golden Staircase. The property was developed using

open-pit mining Open-pit mining, also known as open-cast or open-cut mining and in larger contexts mega-mining, is a surface mining technique of extracting rock or minerals from the earth from an open-air pit, sometimes known as a borrow. This form of mining ...

for the first 200 feet, then resorted to underground mining methods. The company was capitalized in 1910 and produced 247 tons of high-grade ore its first year. After the Porcupine Fire of 1911, the mine was rebuilt such that by March 1912, a 40-

stamp mill A stamp mill (or stamp battery or stamping mill) is a type of mill machine that crushes material by pounding rather than grinding, either for further processing or for extraction of metallic ores. Breaking material down is a type of unit operatio ...

was processing 400 tons a day. The mine was incorporated in 1912 and acquired Dome Extension in 1916.

Ambrose Monell Ambrose Monell (1873 – May 2, 1921) was an American industrialist and military commander. He served as the first president of the International Nickel Company and was the namesake of the alloy known as Monel. Biography Monell was born in 1873 ...

, Joseph Delamar, and Jules Bache served as presidents. A rich ore body was discovered at the 23-level of the Dome Extension in 1933.

References

External links

Goldcorp - Porcupine Gold Mines
(copy archived May 9, 2012)

at Mindat.org
Dome Mine 2

{{Clear Gold mines in Ontario Mines in Timmins Surface mines in Canada Underground mines in Canada Stamp mills

See also

References

External links