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Minesites Directory

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

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Page 90 of 147 (3508 total)
Vance Quarry

Alabama, United States · Open Pit

Operating
Workforce
In the fiscal year 2024, the Vance Quarry employed 9 people. In fiscal year 2023, the workforce was 14. In fiscal year 2020, the quarry reported 15 employees.
Overview
The Vance Quarry, operated by Martin Marietta Materials, is an active surface mine in Vance, Alabama. The primary commodity extracted is limestone, which is processed into aggregates.
Production
In the fiscal year 2024, the Vance Quarry had a production of 359,938 net tons of limestone. In fiscal year 2023, production was 441,796 net tons. In fiscal year 2020, production was 742,746 net tons.
Companies & ownership
  • Martin Marietta Materials, Inc.
    NYSE:MLM
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O'Neal Quarry

Alabama, United States · Open Pit

Operating
Workforce
17 employees (2022)
Overview
O'Neal Quarry is an active open pit, multi-bench quarry producing aggregate products from limestone. The facility processes limestone on-site through drilling, blasting, crushing, sizing, and separation.
Production
916,000 net tons of limestone (2022), 5.5 million tons of limestone (2017)
Processing
drilling and blasting, crushing, sizing, separation
Equipment
front-end loaders, haul trucks, crushing plant, sizing plant, separating plant, railway access
Companies & ownership
  • Martin Marietta Materials, Inc.
    NYSE:MLM
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Maylene Quarry

Alabama, United States · Quarry

Operating
Workforce
11-12 employees
Overview
The quarry pit is approximately 95 acres.
Production
In fiscal year 2016, the Maylene Quarry produced 409,726 net tons of limestone.
Equipment
railway access
Expansion
potential for future expansion
Companies & ownership
  • Martin Marietta Materials, Inc.
    NYSE:MLM
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Huntsville Quarry

Alabama, United States · Open Pit

Operating
Silica SandGypsum
Companies & ownership
  • Martin Marietta Materials, Inc.
    NYSE:MLM
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Auburn Quarry

Alabama, United States · Open Pit

Operating
Silica SandGypsum
Companies & ownership
  • Martin Marietta Materials, Inc.
    NYSE:MLM
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Allsboro Quarry

Alabama, United States · Quarry

Operating
Silica Sand
Overview
The quarry is part of Martin Marietta's East Division and its Alabama District. The quarry does not have railway access. The facility's operating hours are Monday to Friday, from 5:30 AM to 4:30 PM. The Mine Safety and Health Administration (MSHA) has inspected the site, and it has been associated with a mill.
Companies & ownership
  • Martin Marietta Materials, Inc.
    NYSE:MLM
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Alabaster Quarry

Alabama, United States · Quarry

Operating
Workforce
21 employees (2023)
Overview
The Alabaster Quarry, operated by US mining company Martin Marietta Materials, is an active surface mine located in Alabaster, Shelby County, Alabama. The primary commodity produced is crushed and broken limestone, which is sold as aggregates.
Production
1,233,247 tons of crushed, broken limestone (2023)
Equipment
off-highway haul trucks, railway access
Companies & ownership
  • Martin Marietta Materials, Inc.
    NYSE:MLM
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Santo Domingo Project

Atacama, Chile · Open Pit

Under Development
CopperIron OreGold
Mine life
19 years
Workforce
1,550 to 4,060 workers during construction; 1,055 employees once operational
Overview
The Santo Domingo Project is a fully-permitted copper-iron-gold project operated by Capstone Copper Corp. in the Atacama region, Chile. It will be developed as two open-pit mines, Santo Domingo and Iris Norte.
Production
Projected average annual production for the first seven years: 106,400 tonnes of copper and 3.7 million dry metric tonnes of iron concentrate. Life-of-mine average annual production: 68,100 tonnes of copper and 3.6 million dry metric tonnes of iron concentrate. Total life-of-mine copper production: 1.3 million tonnes.
Processing
Copper-iron concentrator with a designed maximum throughput of 72,000 tonnes per day, using Autogenous Grinding (AG) milling, conventional rougher cell flotation, regrinding, classification, Jameson Cells, and Low Intensity Magnetic Separation for magnetite recovery
Equipment
electric and hydraulic shovels, a wheel loader, and 290-tonne capacity haul trucks, supported by drilling rigs, tracked and wheel dozers, motor graders, and water trucks
Expansion
Agreement for Orion Resource Partners LP to acquire a 25% interest upon a positive final investment decision
Companies & ownership
  • Capstone Copper Corp.
    ASX:CSC · TSX:CS
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Mantoverde

Atacama Region, Chile · Open Pit

Operating
CopperGold
Opened
1995-01-01
End year
2049
Workforce
More than 1,000 jobs (MVDP)
Overview
Mantoverde is an operating open-pit copper-gold mine located in the province of Chañaral, Atacama Region, Chile. It is situated 56 kilometres southeast of the city of Chañaral and 100 kilometres north of Copiapó, at an altitude of approximately 900 metres above sea level. The operation consists of four open pits along the Mantoverde fault, mining both sulphide and oxide ores.
Production
SX-EW plant capacity of 60,000 tonnes per year of copper cathodes. Annual copper production was 95,115 tonnes in 2025. Sulphide concentrator nominal capacity of 32,000 tonnes per day (MVDP).
Processing
Oxide ore is treated through heap and dump run-of-mine leaching and a conventional solvent extraction-electrowinning (SX-EW) plant to produce high-purity copper cathodes. Sulphide ore is processed at a concentrator plant that produces copper concentrate with gold as a by-product. Processing infrastructure includes a primary gyratory crusher, a SAG mill, a ball mill, traditional and column flotation cells, thickeners, cyclones, and pumps. Supported by a state-of-the-art desalination plant.
Equipment
Komatsu 830E and Caterpillar 785 haul trucks; Caterpillar 994K front-end loaders, Komatsu 4100XPC electric cable shovels, and Komatsu PC5500 hydraulic shovels; Atlas Copco (Epiroc) DM50 and Caterpillar MD6310 drills
Expansion
Mantoverde Development Project (MVDP) completed in 2023, adding a sulphide concentrator with 32,000 tonnes per day capacity; Mantoverde Optimized (MV-O) project is a brownfield expansion to increase sulphide concentrator throughput to 45,000 tonnes per day
Companies & ownership
  • Capstone Copper Corp.
    ASX:CSC · TSX:CS
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Mantos Blancos

Antofagasta, Chile · Open Pit

Operating
CopperSilver
Opened
1960-01-01
End year
2038
Workforce
Workforce lives off-site, primarily in Antofagasta. In 2022, contractors made up approximately 38% of the total workforce at Mantos Blancos and Mantoverde combined. For 2024, contractors form approximately 54% of the total workforce at Mantos Blancos and Mantoverde operations.
Overview
Mantos Blancos is an active open-pit mine owned and operated by the Canadian mining company Capstone Copper Corp. It is located in the Antofagasta region of Chile, approximately 45 kilometres northeast of the city of Antofagasta, situated 800 metres above sea level in the Atacama Desert. The primary commodities produced are copper and silver.
Production
49,522 tonnes in 2023; 44,574 tonnes in 2024; guidance of 49,000–59,000 tonnes for 2025.
Processing
Sulphide ore processed via concentrator with a flotation circuit; oxide ore treated via dump leaching. Sulphide concentrator plant throughput expanded to 7.3 million tonnes per year (20,000 tonnes per day).
Equipment
primary crusher, secondary crusher, tertiary crushers, Sandvik crushers (including a CH870i model), ball mills, mining fleet, auxiliary equipment
Expansion
Mantos Blancos Concentrator Debottlenecking Project (completed late 2021); Phase II expansion being studied to potentially increase throughput to at least 27,000 tonnes per day
Companies & ownership
  • Capstone Copper Corp.
    ASX:CSC · TSX:CS
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Cozamin

Zacatecas, Mexico · Underground

Operating
CopperSilverZincLead
End year
2030
Overview
The Cozamin mine is an operating underground copper-silver mine with a surface milling facility, owned and operated by Capstone Copper Corp. It is a polymetallic mine, producing primarily copper and silver, with zinc and lead as by-products. The operation is 100% owned by Capstone Copper.
Production
For the full year of 2025, Cozamin produced 25,348 tonnes of copper. The production guidance for 2026 is forecast to be between 21,000 and 24,000 tonnes of copper. The milling facility has a capacity of 4,400 tonnes per day.
Processing
The processing plant includes a primary jaw crusher, a secondary cone crusher, and a tertiary crusher. The crushed ore is then fed into ball mills for grinding. The ground slurry undergoes a flotation process to produce copper, zinc, and lead concentrates. A paste backfill plant was completed in late 2022 and became operational in 2023.
Equipment
The Capstone-owned fleet includes: Ten Sandvik LH 410 load-haul-dump scoops, Sandvik Axera 5 and DD-311-40 jumbo drills, a variety of Sandvik long-hole drills (DL310, DL311, DL331, DL411), two Sandvik TH430 haul trucks, a TUMI SBR 400SR raise borer, five Sandvik DS 311 rock bolters, two Paus 853 S8 rock scalers, Caterpillar telehandlers and backhoe loaders, a Getman A64 utility vehicle and a Maclean scissor lift. The contractor-owned fleet includes additional load-haul-dump scoops, jumbo drills, rock bolters, and haul trucks.
Expansion
A paste backfill plant was completed in late 2022 and became operational in 2023. This plant combines approximately half of the filtered tailings with cement to create a paste that is pumped back underground to be used as backfill, which aids in increasing copper ore extraction.
Companies & ownership
  • Capstone Copper Corp.
    ASX:CSC · TSX:CS
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Pinto Valley Mine

Arizona, United States · Open Pit

Operating
CopperMolybdenumGoldSilver
Opened
1975-01-01
End year
2039
Workforce
The mine supports approximately 2,250 direct and secondary jobs annually and is the second-largest employer in the Globe-Miami district. In 2021, it was stated that the mine life extension would preserve approximately 700 jobs. When Capstone acquired the mine in 2013, 98% of the 650 employees accepted employment offers.
Production
In the fourth quarter of 2025, the mine produced 11,423 tonnes of copper. The total copper production for 2025 was 42,382 tonnes. In 2024, the mine produced 126 million pounds of copper.
Processing
The mine uses conventional open-pit hard rock mining methods which include drilling, blasting, loading, and hauling. The ore is processed at a concentrator plant that uses a conventional porphyry copper concentrator flowsheet with primary, secondary, and tertiary crushing, followed by ball milling and flotation to produce copper and molybdenum concentrates. There is also a solvent extraction-electrowinning (SX-EW) plant for producing copper cathode from leach solutions. The concentrator has a capacity of 60,000 tonnes per day, and the SX-EW plant has a capacity of 25,000 tonnes per day.
Equipment
The mining fleet includes haul trucks and loaders. As of 2021, the fleet included 19 Caterpillar 789D haul trucks (185 dry tonnes capacity) and 4 Liebherr T264 trucks (215 dry tonnes capacity). Loading equipment included two Caterpillar 994K front-end loaders, two Caterpillar 994H loaders, and one Hitachi EX5600 hydraulic shovel. The processing plant consists of a primary crusher, secondary and tertiary crushers, six ball mills, and flotation circuits. Specifically, there is a Fuller Traylor gyratory primary crusher and six Allis-Chalmers overflow ball mills. In 1978, the plant was described as having four 7 ft standard and eight 7 ft shorthead crushers, and six 18 ft by 21 ft, 4000 hp single-stage ball mills.
Expansion
A district growth study is evaluating the potential to extend the mine life through 2050.
Companies & ownership
  • Capstone Copper Corp.
    ASX:CSC · TSX:CS
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Goulamina Lithium Project

Bougouni region, Mali · Open Pit

Operating
Lithium
Opened
2024-12-15
End year
2047
Mine life
23 years
Workforce
peaked at approximately 2,000 during construction; over 400 Malian and 30 Australian employees in July 2023; expected to build up to about 1,000 workers in H2 2023
Overview
A large-scale, hard-rock open-pit lithium mine located in the Bougouni region of southern Mali, approximately 150 kilometres south of the capital, Bamako.
Production
first phase of production has a designed capacity of 506,000 tonnes of spodumene concentrate per year. There are plans for a second phase expansion which would increase the total production capacity to 1 million tonnes per year.
Processing
conventional spodumene beneficiation. The processing plant includes a three-stage crushing circuit to a P80 of 6.2 millimetres, followed by closed-circuit ball milling and screening. The flowsheet also incorporates two-stage magnetic separation and a three-stage flotation circuit (roughing, cleaning, and recleaning), followed by concentrate dewatering, filtration, and storage. Key equipment includes a single large jaw crusher, cone crushers, and a ball mill.
Equipment
mining fleet includes CAT6030 excavators and CAT777 trucks
Expansion
The plant is designed to accommodate a future expansion. There are plans for a second phase expansion which would increase the total production capacity to 1 million tonnes per year.
Companies & ownership
  • Leo Lithium Limited
    ASX:LLL
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Kopra Underground Mine

North Sulawesi, Indonesia · Underground

Operating
Gold
Companies & ownership
  • PT Archi Indonesia Tbk
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Toka Tindung Gold Mine

North Sulawesi, Indonesia · Open Pit

Operating
GoldSilver
Opened
2009-01-01
End year
2041
Mine life
30 years
Workforce
As of October 2021, the exploration drilling and feasibility work for the Bima-Arjuna deposits, part of the broader Toka Tindung operation, employed over 250 professional staff and local people.
Overview
The Toka Tindung Gold Mine is primarily an open-pit operation, with an underground mining component in development. The open pits include the active Toka, Araren, and Kopra pits, with the Alaskar, Talawaan, and Marawuwung pits in pre-production. An inaugural blast for underground mining at the Kopra pit occurred on 5 December 2024, marking the commencement of its underground development.
Production
2012: 134,000 ounces of gold (first full year of commercial production). 2018: 269,900 ounces of gold. 2019: 261,300 ounces of gold. 2020: 206,800 ounces of gold. 2023: 123,300 ounces of gold. 2024: 93,400 ounces of gold. Q1-Q3 2025: 90,000 ounces of gold. Total Production (2011-2020): Approximately 1.9 million ounces of gold.
Processing
Ore from the various pits is processed through a conventional Carbon-in-Leach (CIL) processing plant. The plant's flowsheet includes a single-stage gyratory crusher, a crushed ore stockpile, and a CIL circuit. The processing plant had an initial capacity of 1.7 million tonnes per annum in 2011. This was expanded to 3.6 million tonnes per annum by 2020, and further optimisation is ongoing to increase the capacity to 4.0 Mtpa.
Equipment
The mine utilises a large fleet for its operations. The main mining contractor, PT Geopersada Mulia Abadi (PT GMA), operates a fleet with the capacity to mine approximately 45 million tonnes of material per annum. To manage its extensive fleet, the mine has implemented the Hexagon OP Pro fleet management system to optimise haulage and the OAS system to monitor and reduce operator fatigue. This has resulted in a 28% increase in truck productivity and a 31% reduction in fuel consumption. The operation is supported by the Rundor Port, located six kilometres from the mine site, which is used for the importation of large equipment.
Expansion
Further optimisation is ongoing to increase the processing capacity to 4.0 Mtpa. There are plans to potentially expand the processing capacity to 8.0 million tonnes per year by the end of 2025.
Companies & ownership
  • PT Archi Indonesia Tbk
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Ivanhoe BESS

New South Wales, Australia · Processing Facility

Under Development
Coal
Overview
The Ivanhoe BESS is a battery energy storage system, part of the broader Ivanhoe Colliery Rehabilitation and Post-Mining Land-Use Facilitation Project. It is a planned future use of the rehabilitated historical coal mining site, situated in the Central-West Orana Renewable Energy Zone of New South Wales, Australia, aligning with Centennial Coal's transition towards diversified energy solutions.
Companies & ownership
  • Centennial Coal Company Limited
    ASX:CEY
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PT Daya Bumindo Karunia coal mine

Central Kalimantan, Indonesia · Open Pit

Under Development
Coal
Overview
Concession area of 14,800 hectares, focused on metallurgical coal.
Companies & ownership
  • PT Petrindo Jaya Kreasi Tbk
    ASX:CUAN
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Quartz Mountain

Oregon, United States · Open Pit

Feasibility
GoldSilver
Overview
The Quartz Mountain project is a late-stage exploration project located in Lake County, Oregon, in the United States. The primary commodity is gold, with silver also present. The project consists of 244 unpatented mineral claims.
Processing
heap leach
Companies & ownership
  • Alamos Gold Inc.
    TSX:AGI · NYSE:AGI
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Charbon Colliery

New South Wales, Australia · Underground

Closed
Coal
Opened
1920-01-01
End year
2015
Mine life
95 years
Workforce
17 people (end of 2014)
Overview
The Charbon Colliery was a coal mine located in the Western Coalfields of New South Wales, Australia, approximately 3 kilometres south of Kandos. It produced black thermal coal for both domestic and export markets, utilizing both underground and open-cut mining methods.
Production
In 2011, the mine produced 1.2 million tonnes of coal from a full production capacity of 1.3 million tonnes per year. In 2014, it produced 779,565 tonnes.
Processing
coal preparation plant
Equipment
continuous miners, coal preparation plant, rail loop, loading facilities
Companies & ownership
  • Centennial Coal Company Limited
    ASX:CEY
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Lynn Lake Gold Project

Manitoba, Canada · Open Pit

Under Development
GoldSilver
End year
2046
Mine life
17 years
Workforce
up to 406 jobs during the construction phase and 412 jobs during operations.
Overview
The Lynn Lake Gold Project is a redevelopment of two historical gold mines, consisting of two primary deposits, MacLellan and Gordon. It is designed as a conventional open-pit mining operation.
Production
average annual production of 176,000 ounces of gold over the initial 10-year mine life. The total mineralized material to be mined from the open pits at both the MacLellan and Gordon sites is estimated to be approximately 26.1 million tonnes. Combined gold recoveries are expected to average 93.7%.
Processing
conventional milling and leaching/carbon-in-pulp (CIP) operation with a capacity of 8,000 tonnes per day. The processing circuit will include crushing, grinding, thickening, pre-aeration and leaching, CIP, cyanide detoxification, carbon elution and regeneration, and gold smelting. A tailings management facility will be constructed approximately 2 kilometres northeast of the planned plant site at MacLellan. The operation will be supplied with low-cost hydroelectric power from Manitoba Hydro.
Companies & ownership
  • Alamos Gold Inc.
    TSX:AGI · NYSE:AGI
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Puerto Del Aire

Sonora, Mexico · Underground

Under Development
Gold
Opened
2027-01-01
End year
2035
Mine life
8 years
Workforce
Mining operations will be managed by a contractor.
Overview
Higher-grade underground gold deposit situated adjacent to the main Mulatos open pit. Alamos Gold announced a positive internal economic study in September 2024 and received approval for an amendment to its environmental impact assessment in January 2025.
Production
Projected average of 127,000 ounces of gold annually for the first four years and 104,000 ounces over the life of the mine. As of 31 December 2023, total mineral reserves of 5.4 million tonnes grading 5.61 grams per tonne of gold, containing 969,000 ounces of gold.
Processing
Flotation circuit to produce a concentrate, with off-site gold recovery, eliminating on-site cyanide use. Process flow sheet includes three-stage crushing, two parallel ball mills, two regrind mills, a flotation circuit, and dewatering.
Equipment
Existing crushing and mill infrastructure from other Alamos Gold operations, including one ball mill and two regrind mills from the Island Gold mill. Mining operations will be managed by a contractor.
Expansion
Construction activities expected to ramp up in mid-2025, with first production anticipated in mid-2027. Development of Puerto Del Aire is the second underground mining operation within the Mulatos District.
Companies & ownership
  • Alamos Gold Inc.
    TSX:AGI · NYSE:AGI
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Myuna Colliery

New South Wales, Australia · Underground

Operating
Coal
Opened
1982-01-01
End year
2029
Mine life
47 years
Workforce
Varied, approximately 250-300 workers in recent reports.
Overview
The mine is located in Wangi Wangi, beneath Lake Macquarie, with surface facilities at Wangi Point Road, Wangi Wangi, approximately 25 kilometres southwest of Newcastle. It was developed to supply the adjacent Eraring Power Station.
Production
Annual production capacity of up to 1.5 million tonnes, with approval to extract not more than 3 million tonnes of ROM coal in any calendar year. Produced 1.098 million tonnes in 2023; 2024 capacity stated as 0.90 million tonnes.
Processing
Crushing at the on-site coal handling plant.
Equipment
Three continuous miner units, mobile bolters, a coal handling plant (breaker, crusher groups, feeders, coal storage bins), and a dedicated overland conveyor system.
Companies & ownership
  • Centennial Coal Company Limited
    ASX:CEY
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Clarence Colliery

New South Wales, Australia · Underground

Operating
Coal
Opened
1979-01-01
End year
2026
Workforce
approximately 300 people
Overview
Located in the Western Coalfields of New South Wales, approximately 10 kilometres east of Lithgow, producing thermal coal for domestic and export markets.
Production
Approved extraction limit of up to 3 million tonnes per annum of run-of-mine coal and a production capacity of up to 2.1 million tonnes per annum. Approved to transport up to 300,000 tonnes of coal by road annually.
Processing
Coal is brought to the surface via conveyor belts. It undergoes primary and secondary crushing before being stockpiled. From the stockpile, it is moved by dozers and conveyors to the Coal Handling and Preparation Plant (CHPP). In the CHPP, the coal's ash content is checked, and it is then transferred to a washed coal stockpile. Coarse rejects are taken to a Reject Emplacement Area (REA), while fine rejects are processed through a belt filter press.
Equipment
Underground: three continuous miners, a mobile bolter unit, shuttle cars, JOY 4th generation Flexible Conveyor Train (FCT). Surface: water treatment plant, rail loop and load-out facilities, conveyor systems, dozers, front-end loaders, steel sets for ground support.
Expansion
Clarence Modification 11 is a proposal to extend the mine's operations for an additional five years, to 31 December 2031.
Companies & ownership
  • Centennial Coal Company Limited
    ASX:CEY
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PT Bara International

Central Kalimantan, Indonesia · Open Pit

Operating
Coal
Companies & ownership
  • PT Petrindo Jaya Kreasi Tbk
    ASX:CUAN
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Page 90 of 147 (3508 total)