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Minesites Directory

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Page 35 of 59 (1395 total)
Deep Mill Level Zone (DMLZ)

Papua, Indonesia · Block Cave

Operating
CopperGoldSilver
Opened
2015-01-01
End year
2041
Overview
Underground block/panel cave mine in the Grasberg minerals district, Papua, Indonesia, producing copper, gold, and silver. Production ramp-up began in 2015 with a projected mine life through 2041.
Production
peak daily tonnage of 80,000 tonnes per day (projected), 9,800 tonnes per day (average in 2019)
Processing
block caving, assisted by hydraulic fracturing; ore transported to mill via inclined conveyor after crushing
Equipment
fleet of haul trucks and loaders, underground gyratory crushers, two crushers (each 2,500-3,000 tons per hour capacity), 4.9 km inclined conveyor system with PROK pulleys
Expansion
initiated caving and began ramping up production in 2015, successful ramp-up necessitated closure of the Deep Ore Zone (DOZ) mine
Companies & ownership
  • PT Freeport Indonesia
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Waihi Project

Western Australia, Australia · Open Pit

Under Development
Gold
Opened
2026-01-01
Mine life
0.67 years
Overview
The Waihi Project is located in the Eastern Goldfields of Western Australia, approximately 120 km northwest of Kalgoorlie. It is part of Ora Banda's larger Davyhurst Gold Project and includes the historical Waihi, Homeward Bound, and Golden Pole deposits, with gold as the primary commodity.
Production
The open pit operation is planned to mine approximately 235,000 tonnes at 1.7g/t for 12,700 ounces over a period of about 8 months, with the ore to be milled in FY27.
Processing
Ore from Waihi will be processed at the nearby Davyhurst processing plant.
Expansion
Potential future underground mine; $10 million committed to advance a study for a new, larger ~3Mtpa processing plant at Davyhurst.
Companies & ownership
  • Ora Banda Mining Limited
    ASX:OBM
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Siberia Trend

Western Australia, Australia · Underground

Under Development
Gold
Workforce
Development with contractors; new 150-room accommodation village under construction.
Overview
The Siberia Trend is a gold project in Western Australia, part of Ora Banda Mining's Davyhurst Gold Project. It is transitioning from historical open-pit operations to a new underground mine at Sand King, which is currently under development and expected to reach steady-state production of 60,000 ounces per annum by June 2025.
Production
Expected steady-state production of approximately 60,000 ounces per annum from the Sand King underground mine.
Processing
Conventional carbon-in-leach (CIL) circuit with a gravity circuit at the Davyhurst processing plant.
Expansion
Development of the Sand King underground mine, approved in July 2024, with portal established in August 2024 and first ore intersected in December 2024. Steady-state production of 60,000 ounces per annum expected by June 2025.
Companies & ownership
  • Ora Banda Mining Limited
    ASX:OBM
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Round Dam Trend

Western Australia, Australia · Open Pit

Under Development
Gold
Autonomous haulage
No
Overview
Gold project in Western Australia, part of the company's larger Davyhurst Project, currently in exploration and development phase with potential for large-scale open-pit mining. Round Dam has become one of Ora Banda’s most important growth assets, with the company describing it as an early-stage but rapidly growing mineralised trend within trucking distance of the Davyhurst mill. Its March 2026 resource increase to 1.33 million ounces was a major contributor to the company’s wider district growth story and a key reason Davyhurst now reads as a larger long-life operating system rather than a single-mine restart.
Equipment
two reverse circulation rigs and one diamond rig
Expansion
Advancing studies for a standalone processing facility of approximately 3 million tonnes per annum at Davyhurst to support Round Dam as a major production centre.
Companies & ownership
  • Ora Banda Mining Limited
    ASX:OBM
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DOZ (Deep Ore Zone) Underground Mine

Central Papua, Indonesia · Block Cave

Closed
CopperGoldSilver
Opened
2000-01-01
End year
2021
Overview
The Deep Ore Zone (DOZ) mine, operated by PT Freeport Indonesia (PT-FI), was an underground block cave mine located in the Grasberg minerals district in the Sudirman Mountain Range of Central Papua, Indonesia. It produced copper, gold, and silver and was the third lift in the East Ertsberg Skarn System (EESS). The mine ceased production at the end of 2021 and is now depleted.
Production
At its peak, 80,000 tons per day; averaged 43,600 metric tons of ore per day in 2004; 3,000 to 5,000 tons of ore per day by December 2021
Processing
flotation at a mill to produce a concentrate containing copper, gold, and silver
Equipment
remote-operated Load Haul Dump (LHD) vehicles, remote-operated chutes, remote-controlled water cannons, mobile rock breakers
Companies & ownership
  • PT Freeport Indonesia
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Riverina Trend

Western Australia, Australia · Open Pit

Under Development
GoldNickelCopper
Companies & ownership
  • Ora Banda Mining Limited
    ASX:OBM
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Grasberg Open-Pit Mine

Central Papua, Indonesia · Open Pit

Closed
CopperGoldSilver
Opened
1990-01-01
End year
2019
Mine life
30 years
Workforce
29,200 (including contractors) in 2019 for the overall Grasberg Mine location.
Overview
Large open-pit copper, gold, and silver mine located in the Sudirman Mountain Range in Mimika Regency, Central Papua, Indonesia. Operated by PT Freeport Indonesia.
Production
Produced over 27 billion pounds of copper and 46 million ounces of gold from 1990-2019. In 2006, processed 240,000 tonnes of ore daily and produced over 67 million tonnes of ore.
Processing
Primary crushing at the mine, then ore delivered by passes to a milling and concentrating complex with four crushers and two large semi-autogenous grinding (SAG) units. Flotation reagent used to separate copper-gold concentrate, which is then transported via pipelines to Amamapare for dewatering, filtering, and drying.
Equipment
Fleet of 170 haul trucks (70-330 tons capacity), 65 dozers and graders, and shovels (30-42 cubic meter buckets).
Companies & ownership
  • PT Freeport Indonesia
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Python Trend

Western Australia, Australia · Open Pit

Under Development
GoldNickelCopper
Companies & ownership
  • Ora Banda Mining Limited
    ASX:OBM
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Kucing Liar Underground Mine

Central Papua, Indonesia · Block Cave

Under Development
CopperGold
Opened
2028-01-01
End year
2041
Mine life
13 years
Workforce
will draw from the experienced and mature workforce already present at PT Freeport Indonesia operations
Overview
Kucing Liar Underground Mine is a developing mine project operated by PT Freeport Indonesia, located in the Grasberg minerals district in Central Papua, Indonesia. It is an underground block cave operation primarily producing copper and gold, with production expected to begin in 2028.
Production
full production rate of 90,000 metric tons per day anticipated by 2033; approximately 560 million pounds of copper and 520,000 ounces of gold annually at full operating rates
Processing
crushing, grinding, flotation using alcohol and lime-based reagents, dewatering
Equipment
two 63 x 89 gyratory crushers, ten conveyors, two 5 MW primary fans, mobile rockbreakers, Getman water carts, Cat clean-up LHD machines
Expansion
long-term mine development activities commenced in October 2021, development of all underground fixed facilities
Companies & ownership
  • PT Freeport Indonesia
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Mulline Trend

Western Australia, Australia · Open Pit

Under Development
Gold
Overview
Underexplored, 10-kilometre-long trend with historic shallow gold mining and old open pit mines, considered to have potential for both open pit and high-grade underground mines.
Processing
Any ore mined in the future would likely be processed at Ora Banda's established 1.2 million tonnes per annum conventional carbon-in-pulp (CIP) processing facility at Davyhurst.
Companies & ownership
  • Ora Banda Mining Limited
    ASX:OBM
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Big Gossan Underground Mine

Central Papua, Indonesia · Underground

Operating
CopperGoldSilver
Opened
2009-01-01
End year
2041
Overview
The Big Gossan mine is an underground operation that utilizes a mechanized longhole open stoping method with paste backfill. The orebody is a tabular, near-vertical deposit with dimensions of approximately 1,200 meters along strike and 800 meters down dip, with a variable thickness ranging from 20 to 120 meters.
Production
Production reached a peak of 7,000 tons per day in 2011. Recent figures from 2024 indicate an average production of approximately 8,000 tons per day. The mine is expected to produce around 135 million pounds of copper and 65,000 ounces of gold annually.
Processing
Ore is dropped down passes to a haulage level where it is loaded by trucks and transported to a jaw crusher. The crushed ore is then hoisted vertically through a two-skip production shaft to a conveyor belt, which transports it to the surface stockpiles for processing. The processing includes grinding and flotation to produce a concentrate containing copper, gold, and silver. The mine features an underground paste backfill plant with a design capacity of 300 tonnes of paste per hour.
Equipment
Elphinstone AD 55 haul trucks, two parallel 1600kW exhaust mixed-flow fans
Companies & ownership
  • PT Freeport Indonesia
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Deep Mill Level Zone (DMLZ) Underground Mine

Central Papua, Indonesia · Underground

Operating
CopperGoldSilver
Companies & ownership
  • PT Freeport Indonesia
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Callion

Western Australia, Australia · Underground

Under Development
GoldNickelCopper
Companies & ownership
  • Ora Banda Mining Limited
    ASX:OBM
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Davyhurst Processing Plant

Western Australia, Australia · Processing Facility

Operating
Gold
Workforce
Supported by a residential and fly-in, fly-out workforce; 24% female participation in FY2025.
Overview
The Davyhurst Processing Plant is a key asset of the Davyhurst Gold Project, wholly owned and operated by Ora Banda Mining Limited, located in the Eastern Goldfields of Western Australia, approximately 120 kilometres north-west of Kalgoorlie, processing gold.
Production
Nameplate capacity of 1.2 million tonnes per annum. For FY2025, processed 1,056,121 tonnes of ore at 3.0 grams per tonne gold, producing 91,010 ounces of gold.
Processing
Conventional carbon-in-leach (CIL) circuit, designed for 106 micrometre grind size. Metallurgical recoveries 88-95%.
Equipment
7.5 MW gas power station, three-stage crushing circuit, grinding circuit with gravity concentrator, AARL elution circuit. Supported by open pit and underground mining fleet including 120-200t excavators, 90-100t dump trucks, Sandvik DD421 jumbos, DL431 drill rigs, LH517 loaders, TH663 trucks.
Expansion
Feasibility study underway to potentially expand processing capacity to 3 million tonnes per annum, with results anticipated in March 2026 quarter.
Companies & ownership
  • Ora Banda Mining Limited
    ASX:OBM
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Grasberg Block Cave Underground Mine

Central Papua, Indonesia · Block Cave

Operating
CopperGoldSilver
Opened
2019-01-01
End year
2041
Workforce
75 female remote equipment operators. The entire Grasberg minerals district employed approximately 27,000 people (including contractors) as of December 2021.
Overview
The Grasberg Block Cave (GBC) is an underground copper and gold mine in the Sudirman Mountain Range of Central Papua, Indonesia, operated by PT Freeport Indonesia. It uses the block caving method, targeting the ore body previously mined by the Grasberg open pit. It began ore extraction in 2019.
Production
Planned production rate of approximately 160,000 tonnes per day. Achieved a record daily production of 151,582 tons of copper ore in July 2023.
Processing
Ore is crushed and ground, then processed by flotation using alcohol and lime to separate copper, gold, and silver concentrates. The complex includes four crushers and two large semi-autogenous grinding (SAG) units.
Equipment
Mixed fleet of 10-15 metric ton LHD loaders and 55-60 metric ton haul trucks (32 loaders, 16 remote-controlled), fully autonomous mobile rockbreakers, automated rail haulage system, three-gyratory crusher complex, dual inclined conveyors, ventilation system, and pumping system.
Expansion
Operations temporarily suspended in September 2025, expected to restart in Q2 2026.
Companies & ownership
  • PT Freeport Indonesia
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Sand King Underground Mine

Western Australia, Australia · Underground

Under Development
Gold
Overview
The project is an underground mine developed from a portal within an existing open pit. It is part of Ora Banda's 100% owned Davyhurst Gold Project.
Production
Steady-state production level of approximately 60,000 ounces per annum anticipated in the June 2025 quarter.
Processing
Ore will be transported to Ora Banda's central mill at Davyhurst. Metallurgical test work indicates gold recoveries are anticipated to average 87.2% at a p80 of 106μm and 90.5% for a p80 of 75μm.
Equipment
2 Sandvik DD422i-60C development drills, 2 Sandvik DL432i-9C production drills, 3 Caterpillar R2900G / R2900XE boggers, 3 Sandvik TH663i trucks, 2 Normet Charmec MC605 - Emulsion charge-up machines, 3 Volvo L120H service loaders (IT), 1 Komatsu GD555 grader, 1 Volvo A30G water truck
Companies & ownership
  • Ora Banda Mining Limited
    ASX:OBM
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Riverina Underground Mine

Western Australia, Australia · Underground

Operating
Gold
Workforce
Personnel operate on a fly-in fly-out roster from Perth.
Overview
The Riverina Underground Mine, part of Ora Banda Mining's Davyhurst Gold Project in Western Australia, is an active underground gold mine. Commercial production commenced on 1 August 2024, utilizing sub-level open stoping and longhole open stoping methods. The mineralised system extends to 1,000 vertical metres.
Production
For the March 2025 quarter, the mine produced 98,455 tonnes of stope ore at 4.9 g/t and 28,229 tonnes of development ore at 3.7 g/t.
Processing
Ore is processed at the Davyhurst Processing Plant, 30 kilometres southeast, using a conventional Carbon-In-Leach (CIL) process. Metallurgical tests show 95% recovery for oxide, 97% for transitional, and 94.3% for fresh ore. The plant has a capacity of 1.2 million tonnes per annum.
Equipment
Mechanised mining equipment fleet includes electric-hydraulic drills, two Sandvik DD422i Dual Control development drills, one Sandvik DL431-8C longhole drill, two Sandvik LH517i boggers (loaders), two Sandvik TH663i trucks, one Rhino 100HM box-hole drill, and one Normet Charmec MC605 Emulsion charge-up machine.
Expansion
A third jumbo was added at Riverina in March 2025 to advance additional levels for an expected production increase.
Companies & ownership
  • Ora Banda Mining Limited
    ASX:OBM
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Raven Gold Deposit

Yukon Territory, Canada · Open Pit

Under Development
GoldLeadZincSilver
Workforce
No permanent operational workforce; exploration programs involve drilling and geological crews.
Overview
The Raven Gold Deposit is a near-surface exploration project, not an operating mine. It is described as a potentially high-grade, on-surface gold deposit with potential for open-pit mining, based on a pit-constrained inferred mineral resource. The project is in an advanced exploration stage.
Production
No production figures as the deposit is at the exploration stage. An inaugural Mineral Resource Estimate (effective September 15, 2022) reported a total Inferred Mineral Resource of 1,070,239 ounces of gold from 19,956,934 tonnes of ore with an average grade of 1.67 g/t Au.
Equipment
Exploration activities have utilized diamond drill rigs and equipment for surface trenching. In 2022, four drills were on site for the exploration program.
Expansion
Ongoing diamond drilling and surface trenching to expand the known resource. An updated mineral resource estimate is anticipated following the 2023 drilling campaign.
Companies & ownership
  • Victoria Gold Corp.
    TSX:VGCX
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Olive Gold Deposit

Yukon, Canada · Open Pit

Under Development
Gold
Opened
2031-01-01
End year
2034
Overview
The Olive Gold Deposit, also referred to as the Olive Zone, is a part of Victoria Gold Corp.'s 100% owned Dublin Gulch property. It is planned as an open-pit mine and is considered an extension of the main Eagle Gold Mine. It is scheduled to come into production in 2031 to extend the overall mine life of the Eagle Gold Mine.
Production
6.5 million tonnes of ore
Processing
heap leach facility
Equipment
primary mining fleet of hydraulic shovels, production drills, and 150-tonne haul trucks
Expansion
extension of the main Eagle Gold Mine
Companies & ownership
  • Victoria Gold Corp.
    TSX:VGCX
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Eagle Gold Mine

Yukon, Canada · Open Pit

Care And Maintenance
Gold
Opened
2020-07-01
End year
2034
Mine life
12 years
Workforce
As of December 31, 2023, Victoria Gold Corp. had 464 employees. Another source indicates the mine employs approximately 500 workers, including embedded contractors.
Production
In 2023, the Eagle Gold Mine produced 166,730 ounces of gold. For the year ended December 31, 2023, a total of 8.5 million tonnes of ore were mined. The updated mine plan as of February 2023 outlined an average annual gold production of 202,000 ounces over the first 8 years of the mine life.
Processing
The Eagle Gold Mine employs a conventional heap leach process. Ore from the open pit is crushed in a three-stage circuit to a target size of 80% passing 12.5 mm. The crushed ore is then conveyed and stacked on an in-valley heap leach pad. A cyanide solution is applied to the stacked ore to dissolve the gold, which is then recovered in the ADR plant.
Equipment
Mining operations utilize a fleet of 136-tonne haul trucks and 12 m3 front-end loaders. This primary fleet is supported by ancillary equipment including drills, graders, and dozers. The processing circuit consists of a three-stage crushing plant. This includes a primary gyratory crusher, a secondary cone crusher, and tertiary cone crushers. A system of overland conveyors transports the crushed ore to the heap leach facility for stacking. In addition to the main crushing circuit, a contractor-operated mobile crushing spread is also available. The gold is recovered through a traditional Adsorption, Desorption, and Recovery (ADR) plant.
Companies & ownership
  • Victoria Gold Corp.
    TSX:VGCX
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Quévillon Project

Québec, Canada · Underground

Under Development
GoldSilverCopperZinc
Workforce
potential for 350 permanent jobs (combined with Windfall)
Overview
Exploration and resource definition stage project covering 150,163 hectares, including the Osborne-Bell deposit 15-17 km northwest of Lebel-sur-Quévillon. A PEA for combined development with Windfall was completed in 2018.
Production
3,200 tonnes per day (combined with Windfall)
Processing
central gold processing mill; 93% recovery
Expansion
2018 PEA for combined development with Windfall deposit
Companies & ownership
  • Osisko Mining Inc.
    TSX:OSK.TO
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Windfall Project

Québec, Canada · Underground

Under Development
GoldSilver
End year
2036
Mine life
10 years
Workforce
over 1,000 direct and indirect jobs during construction and more than 670 direct permanent jobs during operation. A workers' camp with a capacity for 300 individuals.
Overview
The Windfall Project is a gold and silver mining development located in the Abitibi greenstone belt, Urban Township, Eeyou Istchee James Bay, Québec, Canada. It is currently in the development stage, with first gold pour expected in the second half of 2026. The mine is designed as an underground operation with a projected life of 10 years.
Production
average annual production of 306,000 ounces of gold over the life of the mine, with peak production reaching 374,000 ounces in the second year. Mineral reserves are estimated at 3.2 million ounces of gold from 12.18 million tonnes of ore at a grade of 8.1 g/t Au.
Processing
on-site central processing mill with a nominal capacity of 3,400 tonnes per day, average recovery of 93%
Equipment
on-site central processing mill, backfill plant, tailings storage facility, waste rock stockpile, industrial water treatment plant, 69 kV dedicated transmission line
Expansion
Initially 100% owned by Osisko, a 50/50 joint venture was formed with Gold Fields in May 2023. Gold Fields acquired Osisko Mining in October 2024, consolidating 100% ownership of the project.
Companies & ownership
  • Osisko Mining Inc.
    TSX:OSK.TO
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Mount Royal

New South Wales, Australia · Open Pit

Feasibility
CopperGold
Overview
Mount Royal was a copper-gold prospect, not an operational mine, for Mincor Resources. It is part of the larger Tottenham Copper-Gold Project, located near the town of Tottenham in central New South Wales, Australia. Mincor's activities focused on exploration and resource definition, including drilling and surveys. A maiden Indicated and Inferred Mineral Resource was announced in 2008. A scoping study in 2012 indicated positive cash flow potential but insufficient to cover estimated establishment costs. Mincor sold its 70% interest in the Tottenham Project to Locksley Resources Limited in July 2021.
Processing
heap leaching and solvent extraction/electrowinning
Companies & ownership
  • Mincor Resources NL
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Carolina

New South Wales, Australia · Underground

Feasibility
CopperGold
Overview
The Carolina project is a copper-gold deposit located in the Lachlan Fold Belt of New South Wales, Australia, near the town of Tottenham. It is situated within a geological setting known for Volcanic Hosted Massive Sulphide (VHMS) mineralisation. It was a resource-level exploration project under Mincor's management.
Expansion
In 2017, Bacchus Resources Pty Ltd entered into an earn-in and joint venture agreement with Mincor for the Tottenham Project. Subsequently, on 20 April 2021, Mincor Resources executed a tenement sale agreement to sell its 70% interest in the Tottenham Project, which includes the Carolina deposit, to Locksley Resources Limited.
Companies & ownership
  • Mincor Resources NL
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Page 35 of 59 (1395 total)