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Minesites Directory

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Page 25 of 59 (1393 total)
Courageous Lake

Northwest Territories, Canada · Open Pit

Feasibility
Gold
Mine life
12.6 years
Overview
The Courageous Lake gold project is set for a significant transformation with operator Seabridge Gold Inc. planning to spin out the asset into Valor Gold Corp., coinciding with an updated 2024 Preliminary Feasibility Study (PFS) outlining a more profitable operation.
Production
average annual production of 201,000 ounces of payable gold.
Processing
The proposed mining operation will feed a 7,500-tonne-per-day processing plant. The processing method will involve crushing, grinding, and flotation, with the flotation concentrate then undergoing pressure oxidation and cyanide leaching to produce gold doré bars on-site.
Expansion
A subsequent Preliminary Economic Assessment (PEA) suggests the potential for a much longer mine life through the expansion of the open pit.
Companies & ownership
  • Seabridge Gold Inc.
KSM

British Columbia, Canada · Open Pit

Under Development
GoldCopperSilverMolybdenum
Mine life
33 years
Workforce
During a potential five-year construction period, Seabridge estimates annual onsite employment of approximately 1,800 people. During operations, the estimate is for 1,040 people annually. At peak activity in 2025, the project supported more than 260 workers on site.
Overview
The project received its Environmental Assessment Certificate in 2014. In July 2024, the BC government determined that the KSM Project has been "Substantially Started", which means its environmental approvals remain in place for the life of the project. An extensive field data collection program, including 8,500 meters of geotechnical drilling, was completed in 2025 to support a Feasibility Study.
Production
Over a 33-year mine life, the average annual metal production is estimated at 1.0 million ounces of gold, 178 million pounds of copper, and 3.0 million ounces of silver. The 2022 PFS estimates average annual production of 1.03 million ounces of gold, 178 million pounds of copper, 3.0 million ounces of silver, and 4.2 million pounds of molybdenum.
Processing
The proposed project includes an ore preparation complex at the mine site and a process plant and tailings management facility in the Treaty valley. These two main areas will be connected by twin 23-km-long tunnels, known as the Mitchell-Treaty Tunnels (MTT). A separate molybdenum concentrate and gold-silver doré will be produced at the processing facility.
Expansion
Construction has advanced on the Treaty Creek Terminal switching station to connect KSM to renewable power. Seabridge Gold is advancing towards a partnership for the KSM project, having completed site visits with three joint venture finalists in the third quarter of 2025.
Companies & ownership
  • Seabridge Gold Inc.
Golden Zone Property

Alaska, United States · Open Pit

Under Development
GoldCopperSilver
Overview
The Golden Zone Property is an exploration-stage asset operated by Contango ORE, Inc. in Alaska, United States. It is situated in the Valdez Creek Mining District, near rail and highway infrastructure, covering 10,690 acres of mining claims and an Upland Mining Lease.
Companies & ownership
  • Contango ORE, Inc.
    NYSE:CTGO
Powderhorn / Gullbridge

Newfoundland, Canada · Underground

Under Development
CopperZincGoldSilver
Overview
Exploration-stage polymetallic project (copper, zinc, gold, silver) in central Newfoundland, Canada, including the past-producing Gullbridge copper mine. Mineralisation is VMS style.
Companies & ownership
  • Champion Iron Limited
    ASX:CIA · TSX:CIA · OTC:CIAFF
Golden Grove

Western Australia, Australia · Underground

Operating
CopperZincGoldSilverLead
Opened
1989-01-01
Mine life
10 years
Overview
Golden Grove is a base and precious metals mine located 52 kilometres south-southeast of Yalgoo in Western Australia. It is a world-class volcanic-hosted massive sulphide (VHMS) geological system. The operation consists of two underground mines, Scuddles and Gossan Hill. Mining operations first commenced in 1989 with the development of the Scuddles underground mine, followed by the Gossan Hill underground mine in 1996.
Production
For the 2025 calendar year, Golden Grove produced 22,000 tonnes of copper, 35,000 tonnes of zinc, 15,000 ounces of gold, and 746,000 ounces of silver. In the December 2025 quarter, copper production was 6,900 tonnes and zinc production was 3,400 tonnes. The mining rate for 2024 was forecast at 1.47 million tonnes per annum.
Expansion
29Metals is progressing with the development of the Gossan Valley project, which is expected to become a third mining front for Golden Grove, with the first ore anticipated by the end of 2026. The company is also focused on recommencing mining at the Xantho Extended orebody in April 2026, following the implementation of ground support upgrades. Studies have confirmed the potential for the Cervantes deposit to extend the operating life of the Scuddles mine. As of 31 December 2025, Ore Reserves at Golden Grove increased to 18.2 million tonnes.
Companies & ownership
  • 29Metals Limited
    ASX:29M
Shamrock

Alaska, United States · Underground

Under Development
Gold
Overview
The Shamrock project is an exploration-stage asset operated by Contango ORE, Inc. It is a district-scale gold exploration project located in the Richardson Mining District in east-central Alaska, United States, approximately 113 kilometres (70 miles) from Fairbanks. The property consists of 368 Alaska State mining claims covering approximately 52,920 acres.
Companies & ownership
  • Contango ORE, Inc.
    NYSE:CTGO
Hona

Alaska, United States · Underground

Under Development
GoldSilverCopper
Overview
The Hona prospect is an early-stage exploration project in Alaska, United States, situated immediately south and west of the Eagle block, forming the Eagle/Hona property. It is a large intrusive-related gold system with associated anomalous silver and copper.
Companies & ownership
  • Contango ORE, Inc.
    NYSE:CTGO
Lucky Shot Project

Alaska, United States · Underground

Feasibility
GoldSilver
Overview
The project is located in the Willow Mining District, 180 road kilometres north of Anchorage, Alaska. It includes 725 acres of patented mining claims and 7,865 acres of State of Alaska mining claims, covering three historical producing gold mines: the Coleman, Lucky Shot, and War Baby mines. Contango ORE, Inc. is in an advanced exploration phase, with a feasibility study anticipated to be completed in the first half of 2027.
Production
Targeting annual gold production of 40,000 to 50,000 ounces.
Processing
Proposed mining plan is based on a Direct Shipping Ore (DSO) approach.
Expansion
Underground diamond drilling program started in November 2025 as part of a multi-phase exploration campaign, designed to support a mineral resource update and a feasibility study. Drilling program expected to continue through 2026, consisting of approximately 18,000 metres across 210 drill holes.
Companies & ownership
  • Contango ORE, Inc.
    NYSE:CTGO
Johnson Tract Project

Alaska, United States · Underground

Under Development
GoldCopperSilverZincLead
Overview
The project proposes direct shipping of ore, where the ore is mined, placed into sealed containers, transported to the coast, and placed on barges for offsite processing. There will be no tailings or milling facility on site.
Processing
direct shipping of ore, where the ore is mined, placed into sealed containers, transported to the coast, and placed on barges for offsite processing. There will be no tailings or milling facility on site. Metallurgical testing indicates excellent recoveries, with gold recovery over 97% and base metal recoveries from 80-90% to separate concentrates.
Expansion
expanded airstrip, an underground access ramp, and a road to a barge landing at the coast
Companies & ownership
  • Contango ORE, Inc.
    NYSE:CTGO
Aguila Project

Oaxaca, Mexico · Underground

Operating
GoldSilverCopperLeadZinc
Workforce
majority of 480 employees associated with Don David Gold Mine operations
Overview
The Aguila Project, operated by Gold Resource Corporation's wholly-owned subsidiary Don David Gold Mexico S.A. de C.V., is located in the state of Oaxaca, Mexico. The project is the company's flagship operation and is also referred to as the Don David Gold Mine (DDGM).
Production
2025: 5,300 ounces of gold, 1,594,300 ounces of silver, 264 tonnes of copper, 1,192 tonnes of lead, and 3,613 tonnes of zinc. 2022: 30,119 ounces of gold and 1,057,209 ounces of silver produced and sold. 2021: 22,644 ounces of gold and 1,066,581 ounces of silver produced and sold. 2020: 20,473 ounces of gold, 1,189,366 ounces of silver, 1,593 tonnes of copper, 7,725 tonnes of lead, and 19,696 tonnes of zinc produced.
Processing
differential flotation to produce copper, lead, and zinc concentrates, and an agitated leach circuit for producing gold and silver doré. The plant has a nominal processing capacity of 1,800 tonnes per day.
Equipment
assay laboratory equipped with jaw crushers, pulverizers, gas and electrical furnaces, a micro-balance, an X-Ray fluorescence spectrometer, and an atomic adsorption spectrometer; used underground fleet equipment; third dry stack filter press on order
Expansion
construction of a water filtration plant and dry stack tailings facilities completed in 2021; onboarded all employees from an outsourced third-party provider in June 2021; engaged underground mining contractor Cominvi Servicios S.A. de C.V. in May 2025; connected to the national power grid in March 2019
Companies & ownership
  • Gold Resource Corporation
    NYSE:GORO
San Andres Mine

Copán, Honduras · Open Pit

Operating
GoldSilver
Opened
1983-01-01
Mine life
10 years
Workforce
initially employed 30 people with plans to create up to 250 direct jobs. 90% of the Minosa workforce are local residents.
Production
In 2024, the mine produced 78,372 ounces of gold and 9,644 ounces of silver. For the full year 2025, production was 71,649 gold equivalent ounces.
Processing
The San Andres Mine is a heap leach operation with two stages of crushing. It utilises an Adsorption, Desorption and Recovery (ADR) plant to produce a final gold dore product.
Equipment
conventional earth-moving equipment. It has a primary crusher-conveyor system and a stacking system for the leach pad.
Expansion
In February 2024, Aura Minerals announced the "Seeds of Hope" venture at the mine, a project to cultivate grapes for wine production aimed at fostering social and economic progress in the region. The initial investment is approximately US$1 million over the first five years, with a potential to revitalise the regional economy for at least the next 50 years.
Companies & ownership
  • Aura Minerals Inc.
Don David Gold Mine

Oaxaca, Mexico · Underground

Operating
GoldSilverCopperLeadZinc
Overview
The Don David Gold Mine is an active underground mine located in Oaxaca, Mexico. It is 100% owned and operated by Gold Resource Corporation through its Mexican subsidiary, Don David Gold Mexico S.A. de C.V. The operations are centered along the San José structural corridor, where the company holds six properties spanning 55 continuous kilometers. The operation includes the Arista and the historical Mirador Alta Gracia underground mines.
Production
In 2013, the mine had a production rate of 1,300 tons per day with plans to increase to 1,500 tons per day. For the full year ended December 31, 2025, the Don David Gold Mine produced 5,300 ounces of gold, 1,594,300 ounces of silver, 264 tonnes of copper, 1,192 tonnes of lead, and 3,613 tonnes of zinc. In the same period, the mine produced and sold a total of 23,125 gold equivalent ounces, which comprised 4,944 gold ounces and 1,461,898 silver ounces.
Processing
flotation circuit that produces three types of differential concentrates: copper/gold, lead/silver, and a zinc concentrate. Gravity circuit and intensive leaching have been decommissioned, and the agitated leach circuit was decommissioned in 2023 but can be restarted if needed.
Equipment
mining fleet
Expansion
upgrade its mining fleet and engaged a third-party mining contractor in the third quarter of 2025 to improve production; began receiving newly acquired equipment at the end of the third quarter of 2025
Companies & ownership
  • Gold Resource Corporation
    NYSE:GORO
Back Forty Project

Michigan, United States · Open Pit

Under Development
GoldSilverCopperLeadZinc
Overview
A development-stage project located in Menominee County, Michigan. It is a polymetallic volcanogenic massive sulphide deposit.
Companies & ownership
  • Gold Resource Corporation
    NYSE:GORO
Mirador Mine

Oaxaca, Mexico · Underground

Under Development
GoldSilver
Opened
2017-01-01
Overview
The Alta Gracia Project, which hosts the Mirador Mine, is located in the state of Oaxaca, Mexico. It is situated approximately 32 kilometres from the Don David Gold Mine (DDGM) processing facilities and about 16 kilometres northwest of the company's Aguila Project. The project is part of Gold Resource Corporation's Oaxaca Mining Unit. Underground mining at Alta Gracia was conducted from 2017 to 2019. Operations at the Mirador Mine were temporarily halted in June 2020. Permitting and rehabilitation efforts resumed in Q4 2025, with commissioning targeted for early Q1 2026.
Production
For the first quarter of 2019, the Mirador Mine milled 4,113 tonnes of ore with an average gold grade of 1.26 g/t and an average silver grade of 226 g/t. In the third quarter of 2019, tonnes milled at the Mirador Mine were 11,690 at an average grade of 0.76 g/t gold.
Processing
Ore from the Mirador Mine is trucked to the Aguila Mill's agitated leach circuit for processing. Metallurgical recovery assumptions for the Alta Gracia project have been noted as 74% for gold and 81% for silver.
Equipment
two mine portals, mine site offices, mobile equipment maintenance facilities, a diesel power generation plant, compressed air, and a mine water pumping station
Expansion
permitting and rehabilitation efforts had resumed at the Alta Gracia mine, with commissioning targeted for early in the first quarter of 2026
Companies & ownership
  • Gold Resource Corporation
    NYSE:GORO
Arista Mine

Oaxaca, Mexico · Underground

Operating
GoldSilverCopperLeadZinc
Overview
The Arista Mine is an underground polymetallic mine and a key component of Gold Resource Corporation's Don David Gold Mine (DDGM) operation. The mine includes the Arista and Switchback vein systems, and recent development has focused on the new Three Sisters vein system, which is expected to provide a significant portion of future production. Ore is processed at the DDGM facility, located approximately two kilometres from the Arista Mine portal, producing copper/gold, lead/silver, and zinc concentrates.
Production
For the full year ended December 31, 2025, the Don David Gold Mine produced 5,300 ounces of gold, 1,594,300 ounces of silver, 264 tonnes of copper, 1,192 tonnes of lead, and 3,613 tonnes of zinc. Total sales for 2025 amounted to 23,125 gold equivalent ounces, which comprised 4,944 gold ounces and 1,461,898 silver ounces.
Processing
Ore is processed at the DDGM facility, producing copper/gold, lead/silver, and zinc concentrates.
Equipment
aging equipment fleet, new mining equipment being acquired, Cominvi Servicios engaged as underground mining contractor
Expansion
Exploration and development focused on Three Sisters and Gloria vein systems; 800% increase in Mineral Reserves for Three Sisters vein system.
Companies & ownership
  • Gold Resource Corporation
    NYSE:GORO
São Francisco Project

Mato Grosso, Brazil · Open Pit

Care And Maintenance
Gold
Overview
The São Francisco Project is an open pit gold mine in Mato Grosso, Brazil, currently under care and maintenance since October 2016. It is part of the Apoena mining complex, indirectly 100% owned by Aura Minerals Inc. A sale agreement for the mine's assets and liabilities was entered into on 24 August 2023, pending final authorization. The mine is a shear-hosted lode gold deposit with gold in quartz veins within low-grade metamorphic rocks.
Companies & ownership
  • Aura Minerals Inc.
Tolda Fría Project

Caldas, Colombia · Underground

Care And Maintenance
Gold
Overview
The Tolda Fría Project, wholly owned by Canadian mining company Aura Minerals Inc., is currently under care and maintenance. Located in the department of Caldas, Colombia, approximately 10 kilometres southeast of the city of Manizales, the project is classified as an exploration-stage gold project. Aura Minerals acquired the Tolda Fría Project through a merger with Rio Novo in 2018. The property contains significant high-grade mineralisation and has 14 kilometres of existing underground development for exploration access, which was utilised to complete a reserve estimate in compliance with NI 43-101 standards.
Companies & ownership
  • Aura Minerals Inc.
Carajás Project

Pará, Brazil · Open Pit

Feasibility
CopperGold
Companies & ownership
  • Aura Minerals Inc.
Matupá Project

Mato Grosso, Brazil · Open Pit

Under Development
Gold
Mine life
7 years
Production
A 2022 feasibility study estimated an average annual gold production of 54,779 ounces for the first four years. The average production over the initial mine life was expected to be 55,000 ounces of gold per year. These figures are now under review following the decision to re-evaluate the project's scale.
Processing
The planned processing method is through a Carbon-In-Leach (CIL) system.
Expansion
In May 2024, Aura Minerals acquired the Pé Quente and Pezão projects, which are located near the Matupá project. The company is investing in further exploration, including 13,000 metres of drilling, to assess the potential for integrating these new areas and significantly increasing the mineral resources and reserves of a larger, consolidated Matupá project. This led to the postponement of the original construction plans to maximise the potential return on investment. The company has withdrawn its previous long-term production guidance in anticipation of a potential increase in gold reserves from the expanded project.
Companies & ownership
  • Aura Minerals Inc.
Era Dorada Project

Jutiapa, Guatemala · Underground

Under Development
GoldSilver
Mine life
16.8 years
Production
Total production is projected to be approximately 1.75 million gold equivalent ounces over the life of the mine. Average annual production is anticipated to be around 111,000 gold equivalent ounces for the first four years.
Expansion
In January 2025, Aura Minerals Inc. completed the acquisition of Bluestone Resources Inc., the previous 100% owner of the project, which was formerly known as the Cerro Blanco Project. Aura Minerals received the construction licence for the project and commenced early works in January 2026. These early works include environmental programs, road construction, mine dewatering, and preparation of platforms for equipment and facilities. The company has formally decided to proceed exclusively with underground operations. The exploitation license covers an area of 15.25 square kilometres.
Companies & ownership
  • Aura Minerals Inc.
Serra Grande Mine

Goiás, Brazil · Open Pit

Operating
Gold
Opened
1987-01-01
Workforce
1,674 (2024, including contractors)
Overview
The Serra Grande Mine is located approximately 5 kilometres from the city of Crixás. The operation consists of three mechanised underground mines and one open pit. The ore is treated at a dedicated metallurgical plant with an annual capacity of 1.5 million tonnes.
Production
80,000 ounces of gold in 2024 and 86,000 ounces in 2023 (under previous ownership); 4,761 gold equivalent ounces in December 2025 (under Aura Minerals).
Processing
dedicated metallurgical plant
Equipment
dedicated metallurgical plant
Expansion
Aura Minerals plans to implement a detailed plan to recover production, increase efficiency, and invest in expanding resources and reserves. As part of its 2026 capital expenditure plan, Aura has allocated a portion of its US$123 million maintenance budget to Serra Grande.
Companies & ownership
  • Aura Minerals Inc.
Minosa Mine

Copán, Honduras · Open Pit

Operating
GoldSilver
Companies & ownership
  • Aura Minerals Inc.
Borborema Mine

Rio Grande do Norte, Brazil · Open Pit

Operating
Gold
End year
2045.5
Mine life
20.5 years
Workforce
The project employs 2,184 personnel, both directly and indirectly, with 68% of the workforce hired from the local community.
Production
The mine achieved commercial production in September 2025. For the fourth quarter of 2025, production totalled 15,777 gold equivalent ounces. The 2025 production guidance was between 33,000 and 40,000 ounces of gold. An updated Feasibility Study from February 2026 estimates a weighted average annual gold production of 65,000 ounces over the life of the mine.
Processing
The ore is processed at a Carbon-in-Leach (CIL) plant with a capacity of 2.0 million tonnes per annum. The process involves a three-stage crushing circuit, followed by ball milling and cyanide leaching. Gold is recovered from the solution using a ZADRA elution circuit and electrowinning, ultimately producing gold doré. The mill was operating at over 80% of its designed capacity of 4,500 tonnes per day as of September 2025, with gold recoveries consistently above 90%.
Equipment
Mining is conducted using conventional open-pit methods, employing hydraulic excavators and a fleet of haul trucks. The mining activities are primarily undertaken by a contractor.
Expansion
In February 2026, Aura Minerals announced an updated Feasibility Study for the Borborema Mine following an agreement with the Brazilian government to relocate a federal road that crosses a portion of the deposit. This agreement allowed for a significant increase in the mine's probable mineral reserves by 82% to approximately 1.5 million ounces of gold (40.7 million tonnes at 1.13 g/t Au). This update extended the mine life to 20.5 years. The company is now advancing engineering and water-access solutions to potentially increase the plant's capacity.
Companies & ownership
  • Aura Minerals Inc.
Aranzazu Mine

Zacatecas, Mexico · Underground

Operating
CopperGoldSilverMolybdenum
Opened
2018-01-01
End year
2034
Workforce
739 employees in 2024.
Production
In 2024, the mine produced 97,558 gold equivalent ounces. For the full year 2024, the mine produced 77,600 tonnes of concentrate from 1,229,000 tonnes of milled feed with average grades of 1.5% copper, 0.83 g/t gold, and 22 g/t silver. In 2025, total production was 83,149 gold equivalent ounces, which included 26,700 ounces of gold, 542,046 ounces of silver, 36,583,000 pounds of copper, and 249,000 pounds of molybdenum.
Processing
The processing plant has a capacity of 3,350 tonnes per day. The process is conventional, involving crushing, grinding, flotation, and filtration to produce a copper concentrate with a final grade of 23% Cu. In 2024, a molybdenum recovery circuit was added to the plant to extract molybdenum as a by-product from the concentrate.
Equipment
The mining method is a combination of longitudinal and transverse long-hole open stoping. The underground mine is accessed by two main ramps. Blasted ore is handled by remotely-operated load-haul-dump (LHD) units and transferred to haul trucks.
Expansion
Exploration in 2024 confirmed the extension of skarn mineralisation in the new Esperanza and BW-Connection zones. Proven and Probable Mineral Reserves increased by 1,342,000 tonnes (13%) compared to 2023. As of December 31, 2024, Measured Mineral Resources are estimated at 11.83 million tonnes at a grade of 1.28% Cu, 0.90 g/t Au, and 19 g/t Ag. Indicated Mineral Resources are estimated at 8.28 million tonnes at a grade of 1.03% Cu, 0.57 g/t Au, and 18 g/t Ag.
Companies & ownership
  • Aura Minerals Inc.
Page 25 of 59 (1393 total)