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Minesites Directory

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Page 126 of 147 (3508 total)
Hibbing Taconite Company

Minnesota, United States · Open Pit

Operating
Iron Ore
Opened
1976-01-01
Workforce
750 employees (November 2022), with 255 layoffs expected March 2025
Overview
Located north of Hibbing, Minnesota, in the Mesabi Iron Range, this active open-pit mine produces iron ore pellets (magnetite concentrate). It is a joint venture with U.S. Steel holding 14.7% and Cleveland-Cliffs Inc. 85.3% (managing partner). Operations are sometimes idled due to market conditions.
Production
Rated annual capacity: 9.1 million tons of iron ore pellets (U.S. Steel's share: 1.3 million tons). 2020 production: 7.8 million tons of pellets, 29 million tons of ore mined annually. 2022 production: 5 million long tons of pellets.
Processing
Single stage of crushing and a single stage of autogenous grinding. The on-site concentrator uses autogenous (AG) mills and magnetic separation to produce magnetite concentrate, which is then sent to an on-site pellet plant.
Equipment
Primary mining equipment includes large drills, diesel hydraulic and electric shovels, and off-road dump trucks. Concentrator equipment includes Allis Chalmers gyratory crushers, autogenous grinding and magnetic separation lines. Pellet plant equipment includes balling drums, roll screen, and shredder.
Expansion
In May 2023, Cleveland-Cliffs was awarded new state mineral leases at the former Butler Taconite mine site, which are expected to provide more than two decades of additional ore reserves for Hibbing Taconite.
Companies & ownership
  • Cleveland-Cliffs Inc.
    NYSE:CLF
  • United States Steel Corporation
    NYSE:X
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Minorca Mine

Minnesota, United States · Open Pit

Care And Maintenance
Iron OreIron Ore (Magnetite)
Opened
1976-01-01
Workforce
Approximately 340-353 employees
Overview
The Minorca Mine is an iron ore mine located near Virginia, Minnesota, in the center of the Mesabi Iron Range. The mine targets magnetite-bearing taconite from the Biwabik Iron Formation. The operation consists of two open-pit iron ore mines, the Laurentian and East Pits.
Production
Annual production capacity of 3 million long tons of iron ore pellets; 2.8 million tons produced in 2020; mining rate of approximately 8.6 million long tons of ore per year.
Processing
mining, crushing, concentrating, and pelletizing
Equipment
Haul trucks
Companies & ownership
  • Cleveland-Cliffs Inc.
    NYSE:CLF
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United Taconite

Minnesota, United States · Open Pit

Operating
Iron Ore (Magnetite)
Opened
1965-01-01
Workforce
In December 2017, the mine had 483 employees. A fact sheet updated in March 2023 reported a workforce of 565 employees. In September 2022, a new labor agreement covered approximately 2,000 USW-represented employees across all of Cleveland-Cliffs' Mining and Pelletizing locations in Minnesota and Michigan, including United Taconite.
Overview
United Taconite is an iron ore mining and pelletizing operation. The mine is located on the Mesabi Iron Range in and around Eveleth, Minnesota. The taconite ore is mined at the Thunderbird Mine, which consists of the Thunderbird Mine North and Thunderbird Mine South, and then transported approximately 10 miles by rail to the Fairlane processing facility in Forbes, Minnesota.
Production
2017: 4.8 million gross tons of pellets. 2020: An estimated 5.2 million metric tons per annum of iron ore. 2022: 5 million long tons of pellets. The annual rated capacity was 5.4 million gross tons as of 2017. A 2021 technical report stated the operation produces 5.3 million long tons of iron ore pellets annually from a mining rate of approximately 15 million long tons of ore per year.
Processing
multiple stages of crushing. Ore is first crushed in two stages at the mine site before rail transport to the plant. An additional crushing stage occurs at the Fairlane facility. The on-site concentrator uses rod mills and magnetic separation to produce a magnetite concentrate. This concentrate is then sent to a pellet plant where it is formed into pellets. The pellets are transported by rail to a ship loading port in Duluth, Minnesota.
Equipment
truck and shovel mine. A 2007 accident report mentioned a drill with a total machine weight of approximately 380,000 pounds, powered by a 1500 HP engine.
Companies & ownership
  • Cleveland-Cliffs Inc.
    NYSE:CLF
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Tilden Mining Company

Michigan, United States · Open Pit

Operating
Iron Ore
Companies & ownership
  • Cleveland-Cliffs Inc.
    NYSE:CLF
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Northshore Mining Company

Minnesota, United States · Open Pit

Operating
Iron Ore
Companies & ownership
  • Cleveland-Cliffs Inc.
    NYSE:CLF
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Lone Star project

Arizona, United States · Open Pit

Operating
Copper
Opened
2020-01-01
Workforce
Employment at the Safford Operations (including Lone Star) was expected to increase to over 1,000, with approximately 300 contractors supporting construction and upgrades. By May 2018, 200 full-time positions had been filled, with around 100 more openings.
Overview
The Lone Star project is an open-pit copper mine located in Graham County, Arizona, near Freeport-McMoRan's Safford operation. It is wholly owned by Freeport-McMoRan and primarily produces copper, forming an integral part of the Safford mining complex.
Production
Initial design capacity of approximately 200 million pounds of copper annually, with plans to increase to 300 million pounds of copper per year from oxide ores.
Processing
Mine-for-leach operation utilizing a solution extraction/electrowinning (SX/EW) facility to produce copper cathode. Ore is delivered to a leach pad via overland and portable conveyors. The Safford operations include a 104,300 metric-ton-per-day crushing facility.
Equipment
haul trucks and electric shovels, including CAT 793B 240-ton haul trucks and P&H 4100 XPA electric shovels. Mining fleet capable of moving an average of 435,000 metric tons of material per day.
Companies & ownership
  • Freeport-McMoRan Inc.
    NYSE:FCX
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Safford Mine

Arizona, United States · Open Pit

Operating
CopperGoldSilver
Opened
2007-01-01
End year
2050
Workforce
Approximately 1,830 people (1,575 employees, 255 contractors as of Jan 2025)
Overview
The Safford mine, including the Lone Star project, is a wholly owned, active, large-scale open-pit copper mining complex in Graham County, Arizona. It commenced operations in 2007, producing copper cathode via a mine-for-leach operation, with secondary gold and silver.
Production
SX/EW capacity of 320 million pounds of copper per year. Mining fleet moves 435,000 metric tons of material per day. Lone Star project aims for 300 million pounds of copper per year from oxide ores.
Processing
Crushing, heap leaching, solvent extraction/electrowinning (SX/EW), sulfur burner plant
Equipment
CAT 793B 240-ton haul trucks, P&H 4100 XPA electric shovels, crushing facility, conveyors, radial arm stacker, SX/EW facility, sulfur burner plant
Companies & ownership
  • Freeport-McMoRan Inc.
    NYSE:FCX
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Grasberg

Papua, Indonesia · Block Cave

Operating
CopperGoldSilver
Companies & ownership
  • Freeport-McMoRan Inc.
    NYSE:FCX
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El Abra

Antofagasta, Chile · Open Pit

Operating
CopperMolybdenumGold
Companies & ownership
  • Freeport-McMoRan Inc.
    NYSE:FCX
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Cerro Verde

Arequipa, Peru · Open Pit

Operating
CopperMolybdenumGold
Companies & ownership
  • Freeport-McMoRan Inc.
    NYSE:FCX
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Climax

Colorado, United States · Open Pit

Operating
Molybdenum
Companies & ownership
  • Freeport-McMoRan Inc.
    NYSE:FCX
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Henderson

Colorado, United States · Underground

Operating
Molybdenum
Companies & ownership
  • Freeport-McMoRan Inc.
    NYSE:FCX
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Tyrone

New Mexico, United States · Open Pit

Operating
CopperMolybdenumGold
Companies & ownership
  • Freeport-McMoRan Inc.
    NYSE:FCX
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Chino Mine

New Mexico, United States · Open Pit

Operating
CopperMolybdenumGoldSilver
Opened
1910-01-01
Workforce
865 employees and 310 contractors (Q2 2025)
Overview
The Chino Mine, also known as Santa Rita mine, is an active open-pit copper mining operation in Grant County, New Mexico. It exploits a porphyry copper deposit with adjacent copper skarn deposits.
Production
Moves an average of 180,000 metric tons of material per day. Concentrator milling design capacity: 36,000 metric tons of ore per day. SX/EW plant capacity: 150 million pounds of copper per year.
Processing
A concentrator with 36,000 metric tons/day milling capacity uses wet flotation, including new SAG mills. A solution extraction/electrowinning (SX/EW) plant produces 150 million pounds/year of copper cathode from run-of-mine leaching.
Equipment
twenty 240-metric ton haul trucks and three shovels with bucket capacities ranging from 31 to 48 cubic meters
Companies & ownership
  • Freeport-McMoRan Inc.
    NYSE:FCX
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Miami

Arizona, United States · Open Pit

Operating
Copper
Overview
An open-pit copper mining complex in Gila County, Arizona, now focused on copper production through leaching of stockpiled material. It also includes a smelter.
Production
Copper production: 12 million pounds in 2023, 11 million pounds in 2022, 12 million pounds in 2021. SX/EW plant design capacity: 200 million pounds of copper per year.
Processing
Solution extraction/electrowinning (SX/EW) plant with a design capacity of 200 million pounds of copper per year. Includes a smelter that processes copper concentrate and recycles inorganic metal-bearing waste.
Equipment
Equipment related to material handling for stockpiles and the SX/EW plant. Potential for crushers and mills. Historical mining method was truck and shovel/loader.
Companies & ownership
  • Freeport-McMoRan Inc.
    NYSE:FCX
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Sierrita mine

Arizona, United States · Open Pit

Operating
CopperMolybdenumGoldSilverRhodium
Opened
1907-01-01
End year
2083
Workforce
Approximately 1,330 employees and 240 contractors (Q2 2025)
Overview
The Sierrita mine is a large-scale, open-pit copper and molybdenum mining complex wholly owned and operated by Freeport-McMoRan Inc. Located in Pima County, Arizona, it also produces gold, silver, and rhenium as byproducts.
Production
Milling design capacity of 100,000 to 102,000 metric tons of ore per day. Capable of producing up to 250 million pounds of copper and 25 million pounds of molybdenum annually. Produced 152 million pounds of copper in 2018.
Processing
Primary flotation system for copper and molybdenum concentrates; run-of-mine (ROM) oxide-leaching system for copper with cathode copper plated at Twin Buttes EW facility; molybdenum facilities include a leaching circuit and two molybdenum roasters.
Equipment
Twenty-four 235-metric-ton haul trucks and four electric shovels
Companies & ownership
  • Freeport-McMoRan Inc.
    NYSE:FCX
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Safford (including the Lone Star project)

Arizona, United States · Open Pit

Operating
CopperMolybdenumGold
Companies & ownership
  • Freeport-McMoRan Inc.
    NYSE:FCX
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Bagdad Mine

Arizona, United States · Open Pit

Operating
CopperMolybdenum
Opened
1945-01-01
Mine life
80 years
Workforce
approximately 1,140 people
Overview
The Bagdad Mine is a large open-pit copper and molybdenum mining complex in Yavapai County, Arizona, with a history dating back to 1882 and open-pit operations starting in 1945. Freeport-McMoRan is evaluating a major expansion.
Production
2023: 146 million pounds of copper and 10 million pounds of molybdenum.
Processing
Concentrator with 77,100 metric tons of ore per day capacity for copper and molybdenum concentrate; solution extraction/electrowinning (SX/EW) plant for copper cathode (9 million pounds per year capacity); pressure-leach plant for molybdenum concentrate.
Equipment
Thirty-five 235-metric-ton haul trucks and eight electric shovels (30-48 cubic meter bucket sizes). Fleet of 33 Caterpillar 793-D haul trucks being converted to a fully autonomous haulage system by end of 2025.
Companies & ownership
  • Freeport-McMoRan Inc.
    NYSE:FCX
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Morenci

Arizona, United States · Open Pit

Operating
CopperMolybdenumGoldSilver
Opened
1872-01-01
End year
2041
Workforce
1,706 personnel (May 2023); 5,870 employees (March 2026)
Overview
Open-pit copper and molybdenum mining complex in Greenlee County, Arizona. The mineral deposit is a porphyry copper system with oxide, secondary sulfide, and primary sulfide mineralization.
Production
2022 production: 0.9 billion pounds of copper and 4 million pounds of molybdenum. Total EW tank house capacity: approximately 900 million pounds of copper per year.
Processing
Hydrometallurgy and concentration, including two concentrators (132,000 metric tons of ore per day combined milling capacity), a 72,500 metric ton-per-day crushed-ore leach pad, low-grade run-of-mine leaching system, four solution extraction (SX) plants, and three electrowinning (EW) tank houses.
Equipment
146 haul trucks with a capacity of 267 tons, 16 blast hole drills, 13 electric rope shovels, and six front-end loaders
Companies & ownership
  • Freeport-McMoRan Inc.
    NYSE:FCX
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Doropo Project

Bounkani Region, Côte d'Ivoire · Open Pit

Under Development
Gold
End year
2041
Mine life
13 years
Workforce
expected to exceed 1,500 during the peak construction phase and will be over 400 during operations.
Overview
The Doropo Project is an Australian-owned gold mine operated by Resolute Mining. The project is located in the Bounkani Region of north-eastern Côte d'Ivoire, approximately 480 kilometres northeast of Abidjan and 50 kilometres north of Bouna. The primary commodity is gold. The mine is a multiple open-pit operation. As of early 2026, the project has received its mining permit and a final investment decision has been approved, with construction scheduled to commence in the first half of 2026. First gold production is anticipated in the first half of 2028.
Production
Average annual gold production is expected to be 169,000 ounces. For the first five years of operation, the average annual production is forecast to be 204,000 ounces. The project's ore reserves are estimated at 59.1 million tonnes.
Processing
conventional carbon-in-leach (CIL) circuit. The processing plant will have a capacity of 4.9 million tonnes per annum (Mtpa) for fresh ore and 5.4 Mtpa for oxide and transitional ore.
Equipment
crushing circuit and a semi-autogenous grinding (SAG) mill
Companies & ownership
  • Resolute Mining Limited
    ASX:RSG · LSE:RSG
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Mako Gold Mine

Tambacounda Region, Senegal · Open Pit

Operating
Gold
Commodities, grades and output
YearCommodityAv. GradeOutput
2025Gold1.89 g/t62201 oz
2024Gold-123935 oz
End year
2027
Mine life
9 years
Workforce
90% Senegalese nationals
Overview
The Mako Gold Mine is located in eastern Senegal. Open pit mining activities concluded in June 2025, and the operation is now processing existing stockpiles, expected to continue until the end of 2027. Resolute Mining is working on the Mako Life Extension Project (MLEP) to develop nearby satellite deposits (Tomboronkoto and Bantaco) for additional ore.
Production
Production overview - 2025: gold 62201 oz; 2024: gold 123935 oz.
Processing
Carbon-in-leach (CIL) processing plant with an installed capacity of over 2.1 Mtpa, including a single-stage crusher, 8MW semi-autogenous (SAG) mill, gold extraction circuit, and gold room for producing doré.
Equipment
Mining fleet includes 110-tonne excavators and 90-tonne dump trucks. The operation is a conventional drill and blast, truck and shovel mine.
Expansion
Mako Life Extension Project (MLEP) involves developing nearby satellite deposits (Tomboronkoto and Bantaco) to provide additional ore for the Mako plant. Development capital expenditure for the Tomboronkoto project is estimated at between $80-100 million.
Power sources
Diesel
Companies & ownership
  • Resolute Mining Limited
    ASX:RSG · LSE:RSG
  • Perenti Limited
    ASX:PRN
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Syama Gold Mine

Sikasso Region, Mali · Sublevel Caving

Operating
Gold
End year
2032
Mine life
11 years
Workforce
hundreds of local employment opportunities
Overview
Syama is a large-scale, long-life asset and is currently operational. The operation comprises multiple components: the Syama Underground Mine, the Tabakoroni Complex, Syama North, and several satellite oxide open pits. The underground mine is a modern, sub-level cave operation and is noted as being the first fully-automated underground gold mine in the world.
Production
2020: 214,360 ounces; Q1 2024: 48,459 ounces; 2024 Guidance: 205,000-215,000 ounces; 2025 Guidance: 195,000-210,000 ounces; LOM Projection: 250,000-300,000 ounces annually to 2029.
Processing
Two separate processing circuits: sulphide (2.4 Mtpa capacity, three-stage crushing, grinding, flotation, roaster, carbon-in-pulp; expanding to 4 Mtpa by 2026) and oxide (1.6 Mtpa capacity, jaw crusher, SAG mill, gravity concentrator, intensive leach reactor).
Equipment
Owner-operated automated underground mining fleet (development jumbos, production drills, loaders, trucks) with AutoMine® and OptiMine® control systems. Sulphide processing circuit (crushers, mills, flotation, roaster, CIL) and oxide processing plant (jaw crusher, SAG mill, gravity concentrator, intensive leach reactor). Power from 28MW diesel station, new 50MW hybrid plant planned.
Companies & ownership
  • Resolute Mining Limited
    ASX:RSG · LSE:RSG
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Höchst Commercial-scale Central Lithium Plant (CLP)

Hesse, Germany · Processing Facility

Under Development
Lithium
Overview
The Höchst Commercial-scale Central Lithium Plant (CLP) and the Central Lithium Electrolysis Optimisation Plant (CLEOP) are facilities developed by Vulcan Energy Resources at Industriepark Höchst, Germany. The CLEOP, operational since November 2024, is a pre-commercial plant for testing and optimising the conversion of lithium chloride into battery-grade lithium hydroxide monohydrate. The CLP is the planned full-scale commercial facility, part of Vulcan's Lionheart project, targeted to start production in 2028 with an annual capacity of approximately 24,000 tonnes of lithium hydroxide monohydrate.
Production
The Central Lithium Electrolysis Optimisation Plant (CLEOP) announced its first production of battery-grade lithium hydroxide monohydrate in January 2025. The planned Commercial-scale Central Lithium Plant (CLP) is designed to produce approximately 24,000 tonnes of lithium hydroxide monohydrate per year, sufficient for around 500,000 electric vehicle batteries annually, with production targeted for 2028.
Processing
The process involves extracting lithium chloride from geothermal brine in the Upper Rhine Valley and then converting it to battery-grade lithium hydroxide monohydrate at the Höchst facilities. The Central Lithium Electrolysis Optimisation Plant (CLEOP) tests and optimises this conversion process. The Commercial-scale Central Lithium Plant (CLP) will be the full-scale commercial processing facility, utilising electrolysis units and crystallisers, with ABB supplying electrical infrastructure and JordProxa providing crystallisation, evaporation, and water purification systems.
Equipment
Equipment at the Commercial-scale Central Lithium Plant (CLP) will include electrolysis units and crystallisers. ABB will supply the complete electrical infrastructure, and JordProxa will provide crystallisation, evaporation, and water purification systems.
Companies & ownership
  • Vulcan Energy Resources
    ASX:VUL
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Landau Geothermal Renewable Energy Plant (Future Commercial)

Rhineland-Palatinate, Germany · Processing Facility

Under Development
Lithium
Opened
2023-11-01
Overview
The Landau Geothermal-Lithium Extraction Plant in Rhineland-Palatinate, Germany, is an integrated project by Vulcan Energy Resources, combining geothermal energy production with lithium extraction. It operates as a processing facility, extracting lithium from geothermal brine and generating renewable energy. The primary commodity is lithium, processed into battery-grade lithium hydroxide monohydrate, with geothermal energy and heat as significant co-products. The Lithium Extraction Optimisation Plant (LEOP), an optimisation and training facility, commenced operations in November 2023 and produced its first lithium chloride in April 2024.
Production
The Lithium Extraction Optimisation Plant (LEOP) started producing its first lithium chloride in April 2024. Early results from LEOP show a lithium extraction efficiency of over 90 percent, reaching up to 95 percent.
Processing
Hot, lithium-rich brine is pumped from deep underground reservoirs to the surface, where its heat is used to generate renewable electricity and provide district heating. Lithium is extracted from the brine as lithium chloride using Vulcan's proprietary Adsorption-type Direct Lithium Extraction (A-DLE) technology with its VULSORB® sorbent. The lithium chloride is then transported to Vulcan's Central Lithium Electrolysis Optimisation Plant (CLEOP) in Frankfurt-Höchst for conversion into battery-grade lithium hydroxide monohydrate.
Equipment
The geothermal plant includes an Organic Rankine Cycle (ORC) system with turbines, heat exchangers, and pumps, supplied by Turboden and ROM Technik.
Expansion
Phase One of the commercial project, part of the 'Lionheart' initiative, aims to produce 24,000 tonnes of lithium hydroxide monohydrate annually. The new 30MW geothermal power plant is expected to produce up to 275 gigawatt-hours of clean electricity and 560 gigawatt-hours of renewable heat per year.
Power sources
Geothermal
Companies & ownership
  • Vulcan Energy Resources
    ASX:VUL
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Page 126 of 147 (3508 total)