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Minesites Directory

Browse minesites. Each card shows company ownership and their most recent associated articles.

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Page 34 of 61 (1443 total)
Yauliyacu

Junín, Peru · Underground

Operating
GoldSilver

Companies & Ownership (1)

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Voisey's Bay

Newfoundland and Labrador, Canada · Open Pit

Operating
GoldSilverNickelCopperCobalt

Companies & Ownership (1)

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Sudbury

Ontario, Canada · Underground

Operating
GoldSilverPlatinumPalladiumNickelCopper+1

Companies & Ownership (1)

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Stillwater

Montana, USA · Underground

Operating
GoldSilverPlatinumPalladium

Companies & Ownership (1)

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San Dimas

Durango, Mexico · Underground

Operating
GoldSilver

Companies & Ownership (1)

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Salobo

Pará, Brazil · Open Pit

Operating
Gold

Companies & Ownership (1)

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Peñasquito

Zacatecas, Mexico · Open Pit

Operating
GoldSilver

Companies & Ownership (1)

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Minto

Yukon, Canada · Open Pit

Operating
GoldSilver

Companies & Ownership (1)

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Marmato

Caldas, Colombia · Underground

Operating
GoldSilver

Companies & Ownership (1)

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Los Filos

Guerrero, Mexico · Open Pit

Operating
GoldSilver

Companies & Ownership (1)

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Amapola deposit

Chihuahua, Mexico · Underground

Under Development
SilverZincLeadGold
Overview
The Amapola deposit is one of three identified silver-lead-zinc deposits within the Los Gatos District, alongside the operational Cerro Los Gatos mine and the Esther deposit. It is considered to be in an advanced exploration stage.
Expansion
Detailed mapping and drill testing is ongoing, with follow-up drilling expected after new detailed mapping is analysed with historical and recent drilling results.

Companies & Ownership (1)

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Kudz Ze Kayah

Yukon, Canada · Open Pit

Operating
GoldSilver

Companies & Ownership (1)

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Esther deposit

Chihuahua, Mexico · Underground

Under Development
SilverZincLeadGold

Companies & Ownership (1)

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Hemlo

Ontario, Canada · Underground

Operating
Gold
Commodities, grades and output
YearCommodityAv. GradeOutput
2026Gold-34764 oz
2025Gold4.71 g/t143458 oz
Opened
1985-01-01
End year
2038
Mine life
14 years
Workforce
In March 2026, Hemlo Mining Corp. transitioned to an owner-operated underground mining model, retaining 97% of the former contractor workforce and filling an additional 42 positions. The total workforce is approximately 700, including contractors and temporary employees.
Overview
The Hemlo mine, located approximately 35 kilometres east of Marathon, Ontario, is an operating underground gold mine. Historically, it comprised the Williams, Golden Giant, and David Bell mines, with current operations centred on the Williams mine. Barrick Gold Corporation sold the mine to Hemlo Mining Corp. on 26 November 2025.
Production
In 2025, the mine produced 143,458 ounces of gold. For the first quarter of 2026, the mine produced 34,764 ounces of gold.
Processing
The processing plant has a capacity of up to 10,000 tonnes per day, involving grinding, cyanide leaching, carbon-in-pulp, carbon stripping and reactivation, electrowinning, and refining. In early 2026, the mill was running at about 3,800 tonnes per day, with potential to increase to 4,800 tonnes per day without significant upgrades. Metallurgical recovery for gold averaged 94% in 2025. The underground complex is accessed via a shaft and ramp system with a hoisting capacity of 6,000 tonnes per day.
Equipment
A new Sandvik TH430 30-tonne haul truck was delivered in early 2026. The company plans to add 21 new pieces of mobile equipment throughout 2026, with two commissioned in the first quarter.
Expansion
A recommencement of open-pit mining at the Williams pit is planned to start in 2027 and reach full capacity in 2028. Hemlo Mining Corp. has initiated a 130,000-metre exploration drilling program for 2026 to extend the mine's life, focusing on converting inferred resources, high-definition drilling, and growth drilling.

Companies & Ownership (2)

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Cerro Los Gatos Mine

Chihuahua, Mexico · Drift And Fill

Operating
SilverZincLeadGoldCopper
End year
2032
Overview
The Cerro Los Gatos Mine, operated by the Los Gatos Joint Venture (LGJV) where Gatos Silver holds a 70% interest, encompasses the South-East Deeps (SE Deeps) zone. The mine utilizes longhole and drift-and-fill mining methods and processes ore using conventional sulphide flotation.
Production
For the full year 2024, the Cerro Los Gatos mine produced 9.68 million ounces of silver, 69.7 million pounds of zinc, 46.4 million pounds of lead, and 5,530 ounces of gold.
Processing
conventional sulphide flotation to produce separate lead and zinc concentrates. Plans to install a copper-lead separation circuit, expected to be operational in 2026.
Equipment
modern trackless mobile equipment for all development and mining activities
Expansion
The SE Deeps zone is a focus of resource expansion drilling, expected to contribute to the extension of the mine's life. There are plans to install a copper-lead separation circuit, expected to be operational in 2026, to produce a separate copper concentrate.

Companies & Ownership (1)

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Goose

Nunavut, Canada · Underground

Operating
Gold

Companies & Ownership (1)

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Thunderground underground mine

Western Australia, Australia · Sublevel Caving

Operating
Gold
Opened
2020-01-01
Workforce
420 employees for the broader Thunderbox Operations, working on a fly-in, fly-out basis.
Overview
The Thunderground underground mine is part of Northern Star Resources' broader Thunderbox Operations. It is a simple, long-life underground operation that was in development and progressing in 2019 and 2020. By July 2020, the first production stope was blasted, with ore production ramping up.
Production
289,000 tonnes of development ore at 1.8 g/t, containing 16,608 ounces of gold (February 2021 report); ramping up to produce over 2 million tonnes of ore per annum; 720,000-ounce reserve at 2.0 g/t.
Processing
carbon-in-leach (CIL) cyanide leach plant with a gravity circuit
Equipment
Thunderbox carbon-in-leach (CIL) cyanide leach plant, gravity circuit
Expansion
Processing facility expanded to 6 million tonnes per annum capacity in 2022.

Companies & Ownership (1)

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Mt Charlotte underground mine

Western Australia, Australia · Sublevel Caving

Operating
Gold
Opened
1963-01-01
Workforce
400 employees
Overview
The Mt Charlotte underground mine is part of Northern Star Resources Ltd's Kalgoorlie Consolidated Gold Mines (KCGM) Operations. It is located adjacent to the City of Kalgoorlie-Boulder, approximately 600 kilometres east of Perth in Western Australia, Australia. The mine has a long history, with large-scale, mechanised underground bulk-mining in continuous operation since 1963. As of 31 March 2024, the Mineral Resource for Mt Charlotte was 4.1 million ounces of gold. The mine is a significant contributor to the KCGM Operations.
Production
over 2 million tonnes per annum of ore
Processing
Ore is processed at the Fimiston Processing Plant. Mining method involves large-scale, long hole open stoping and sub-level caving techniques. Backfill is used at the mine, with some being placed via a conveyor.
Equipment
trucks, loaders, graders, drilling jumbos
Expansion
Infrastructure is subject to ongoing upgrades, including ventilation, dewatering, and power systems

Companies & Ownership (1)

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Ramone underground mine

Western Australia, Australia · Underground

Operating
Gold
Opened
2022-01-01
Workforce
Mining activities are undertaken by Northern Star's internal mining services division, Northern Star Mining Services (NSMS)
Overview
The Ramone underground mine is an operational gold mine in the Northern Goldfields region of Western Australia. It is a satellite operation of the Jundee Operations, located 35 kilometres southeast of the Jundee processing plant. Ore from Ramone is hauled via road train and provides supplementary feed to the Jundee processing plant.
Production
average ore movements of 750,000 tonnes per annum
Processing
Ore from Ramone is processed at the Jundee processing circuit, which is a conventional Carbon-in-Leach (CIL) plant with a hard rock processing capacity of approximately 3.0 million tonnes per annum.
Equipment
jumbo development, road train
Expansion
Development of the underground mine was underway and ahead of plan in the June 2022 quarter, with stoping on track to commence in the 2023 financial year. Stoping at the Ramone underground mine began late in the September 2022 quarter.

Companies & Ownership (1)

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Porphyry Project

Western Australia, Australia · Open Pit

Operating
Gold
Workforce
100 personnel (NSMS workforce)
Overview
The Porphyry Project is an active gold mine located approximately 120 kilometres northeast of Kalgoorlie, Western Australia. It is a component of Northern Star's broader Carosue Dam Operations (CDO). The mining centre consists of both open pit (Wallbrook) and underground operations.
Production
Specific production figures for the Porphyry mine are not reported separately but are included in the totals for the Carosue Dam Operations.
Processing
Ore is hauled 45 kilometres to the Carosue Dam Operations mill for processing. The processing circuit is a conventional carbon-in-leach (CIL) plant. Gold is recovered through gravity concentration and CIL cyanidation.
Equipment
single jumbo, 5MW diesel power station, 4.4MW solar farm, 2MW/1MWh battery energy storage system, road trains
Expansion
Solar farm commissioned in February 2024.

Companies & Ownership (1)

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Pogo Operations

Alaska, USA · Underground

Operating
Gold
Opened
2006-01-01
Workforce
690 employees. In 2022, Northern Star (Pogo) LLC had 610 employees and more than 300 contract employees.
Production
FY25 gold production was 283koz. For the June 2025 quarter, gold sales were 85koz as the mill delivered a record annualised run-rate of 1.6Mtpa. In 2022, the Pogo Mine produced approximately 242,808 ounces of gold from 1,343,965 tons of ore milled.
Processing
The processing circuit involves gravity concentration, gold and sulphide flotation, and leaching and adsorption of gold with a leach/carbon-in-pulp (CIP) unit operation. The process plant has a hard rock processing capacity of 1.3Mtpa, which was expanded from 1.0Mtpa in FY22.
Equipment
The mine utilises four portals to access the underground mining areas.
Expansion
Mining methods have transitioned from primarily cut-and-fill to mostly longhole stoping with paste filling. Two new portals were successfully developed in the September 2025 quarter for improved ore access and enhanced haulage efficiency. FY26 growth capital expenditure for Pogo is forecast to be in the range of US$60-65 million.

Companies & Ownership (1)

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Bronzewing Operations

Western Australia, Australia · Open Pit

Operating
Gold
Opened
1991-01-01
Workforce
140
Overview
The Bronzewing Operations are situated within the Yandal Greenstone Belt, 80 kilometres northeast of Leinster, Western Australia. Northern Star Resources acquired the operations in December 2019 through the takeover of Echo Resources. The site was previously on care and maintenance since March 2013. Mining is currently centred on the Orelia open pit, which began pre-production in FY2023 and processed first ore in June 2023. The Orelia pit serves as a high-grade feed source for the expanded Thunderbox mill. The Bronzewing processing plant, which has a milling capacity of up to 1.8 million tonnes per annum, remains on care and maintenance. Production from the Bronzewing Operations is included in the figures for the Thunderbox Operations (TBO).
Processing
The Bronzewing processing plant, with a milling capacity of up to 1.8 million tonnes per annum, remains on care and maintenance. Ore from the active Orelia pit is transported to the Thunderbox processing centre.
Equipment
conventional truck and excavator operation, 200-tonne capacity off-highway road trains
Expansion
Northern Star is conducting ongoing exploration activities in the Bronzewing district as part of a multi-year strategy to screen the Yandal greenstone belt for new gold resources.

Companies & Ownership (1)

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Thunderbox Gold Mine

Western Australia, Australia · Open Pit

Operating
Gold
Workforce
approximately 420 people (fly-in, fly-out)
Overview
The Thunderbox Gold Mine, also known as Thunderbox Operations, is located in the Yandal and Agnew-Wiluna Belts in the North Eastern Goldfields of Western Australia. It comprises open pit and underground mines, sourcing ore from Thunderbox underground, D Zone, Otto Bore, and the satellite Orelia open pit. The new Wonder underground mine commenced mining in November 2023.
Production
In the December 2025 quarter, gold sales from the Yandal Production Centre, which includes Thunderbox, were 91,487 ounces.
Processing
Thunderbox processing facility, mill
Equipment
excavator and trucks, conventional truck and shovel methods, mechanised long hole open stoping, processing plant, mill
Expansion
Wonder underground mine commenced mining in November 2023; Open pit mining at Bannockburn ramping up; Orelia Stage 2 cutback and processing capital at Thunderbox planned for FY26.

Companies & Ownership (1)

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South Kalgoorlie Operations (SKO)

Western Australia, Australia · Underground

Operating
Gold
Opened
1987-01-01
Overview
The South Kalgoorlie Operations (SKO) are located approximately 35 kilometres south of Kalgoorlie, Western Australia. The operations are 100% owned by Northern Star Resources Ltd., which acquired them in 2018. Mining at SKO is focused on the HBJ (Hampton-Boulder-Jubilee) underground mine. The primary mining method is top-down long hole open stoping (LHOS).
Processing
Ore from the South Kalgoorlie Operations is now processed at Northern Star's Kanowna Belle processing facility, located 58 kilometres from the site. The Kanowna Belle plant has a processing capacity of 2 million tonnes per annum and can treat a range of ores through flotation and carbon-in-latch (CIL) circuits.
Expansion
In 2024, paste fill operations commenced to enable the full extraction of the high-grade Mutooroo North underground lodes. Recent exploration has also identified a new resource area at Mutooroo West.

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Page 34 of 61 (1443 total)