Reedy Creek mine

Reedy Creek mine
Name	Reedy Creek mine
State province	Queensland
Country	Australia
Coordinates	20°00′S 142°00′E
Owner	Queensland Metals Group
Products	Copper, Gold, Silver, Zinc
Opening year	1998
Closing year	2032 (projected)

Reedy Creek mine is an inland polymetallic mine in northwestern Queensland notable for copper, gold, silver and zinc production. The project influenced regional transport corridors such as the Flinders Highway and interfaced with national regulators including the Queensland Department of Natural Resources, Mines and Energy and the Australian Government's resource policy agencies. Reedy Creek has been the focus of community groups, environmental NGOs and mining corporations like BHP, Rio Tinto Group and several junior explorers during its exploration and production lifecycle.

Location and geography

The deposit lies in remote Shire of Cloncurry country within the Landsborough Shire influence area, situated near the Barkly Highway and rail links of the Mount Isa line. Proximity to regional centres such as Mount Isa, Townsville and Charters Towers shaped logistics for concentrate trucking to ports including Port of Townsville and Port of Darwin. The site occupies semi-arid savanna on the Cloncurry River catchment and borders pastoral holdings owned by families and companies such as North Australian Pastoral Company. The landscape contains ephemeral drainage connecting to the Flinders River basin and lies downstream of culturally significant sites associated with Waanyi and Gangalidda Traditional Owner groups.

History and development

Exploration at the deposit began after regional work by explorers associated with the Australian Prospectors and Miners Association and geologists from the Geological Survey of Queensland in the late 1960s. Systematic drilling campaigns were conducted by juniors tied to syndicates featuring alumni from University of Queensland and employees seconded from CSIRO. Ownership passed through corporate transactions involving miners such as Pasminco and investment houses represented by Macquarie Group and Goldman Sachs. Commercial development received a federal-level environmental assessment coordinated with the Environment Protection and Biodiversity Conservation Act 1999 process and state approvals from the Queensland Environmental Protection Agency contemporaneous with infrastructure grants from the Australian Infrastructure Financing Facility for the Pacific. Production started after commissioning works with construction contractors linked to CIMIC Group and maintenance providers including WorleyParsons.

Geology and mineralization

The orebody is hosted within Paleoproterozoic to Mesoproterozoic sequences of the Mount Isa Inlier and is structurally controlled along faults correlated with regional lineaments mapped by the Australian Geological Survey Organisation. Mineralization comprises volcanogenic massive sulfide-like lenses and hydrothermal breccia zones comparable to deposits at Mount Isa and Ernest Henry. Primary minerals include chalcopyrite, bornite, sphalerite and galena, with native gold in quartz-carbonate veining similar to styles observed at Mt Morgan. Wallrock alteration includes sericitization and chloritization documented in technical reports by consultants from SRK Consulting and Golder Associates. Isotopic studies referenced by university teams at James Cook University and University of Melbourne tied mineralizing events to regional tectonism synchronous with other deposits in the Carpentaria Province.

Mining operations and production

Mining employed conventional open pit methods transitioning to underground cut-and-fill and longhole stoping as deeper zones were accessed, using contractors experienced with projects at Mount Isa Mines and Century Mine. Processing was conducted onsite in a modular plant incorporating flotation circuits, gravity recovery and a cyanide leach circuit for refractory gold, drawing on designs used at Olympic Dam and Cadia-Ridgeway. Produced concentrates were trucked to smelters operated by Glencore and Nyrstar and refined via supply agreements with Kennecott and electrolytic plants in Asia. Peak annual production reached levels comparable to regional peers, with workforce rosters coordinated through fly-in fly-out services from Townsville Airport and worker accommodation in a purpose-built camp managed by LINX and catering by companies such as Spotless Group.

Environmental and social impacts

Operations affected groundwater and surface water regimes feeding the Flinders River and impacted habitats used by species listed under the Environment Protection and Biodiversity Conservation Act 1999 including migratory birds and threatened fauna recorded by the Queensland Herbarium. Rehabilitation programs sought to restore native grasslands and woodland corridors in consultation with Traditional Owners from Ganggalidda and Garawa and regional stakeholders including Local Land Services groups. Social impacts included employment generation but also community concerns registered with the Australian Council of Trade Unions and local councils over health and workforce fly-in fly-out patterns. Environmental incidents prompted investigations by the Queensland Department of Environment and Science and submissions to parliamentary inquiries led by members of the House of Representatives (Australia).

Regulatory framework and ownership

The project operated under mining leases regulated by the Queensland Mineral Resources Act and environmental approvals granted under the Environment Protection and Biodiversity Conservation Act 1999, with water licensing administered by the Queensland Department of Natural Resources, Mines and Energy. Native title and land access arrangements were mediated through determinations of the National Native Title Tribunal and Indigenous Land Use Agreements negotiated with Traditional Owner corporations such as Gangalidda Aboriginal Corporation and native title representative bodies like the Cape York Land Council. Ownership history includes transactions involving Queensland Metals Group, takeovers by consortiums backed by Fortescue Metals Group-linked investors, and minority stakes held by mining financiers including Whitehaven Coal and private equity firms.

Future prospects and closure planning

Future options evaluated by consultants from Ernst & Young and KPMG included expansion through satellite deposits identified in regional mapping by the Geological Survey of Queensland and exploration tenements held by exploration companies listed on the Australian Securities Exchange. Closure planning followed regulatory guidance from the Queensland Department of Environment and Science and international standards promoted by the International Council on Mining and Metals, with staged rehabilitation, post-closure groundwater monitoring and community transition programs coordinated with RDA Far North and local shire councils. Research collaborations with universities such as University of Queensland and James Cook University considered biodiversity offsets, carbon accounting aligned to protocols of the Clean Energy Regulator and adaptive land-use repurposing in partnership with pastoralists and conservation NGOs including WWF-Australia.

Category:Mining in Queensland