Client name: Vista Gold

Location: Northern Territory, Australia

Total project value: $892M USD (Initial capital)

Duration: January 2021 – Q1 2022

Services provided:

• Process design and documentation
• 3D modelling
• Preliminary processing plant and infrastructure design;
• Water supply
• Tailings dam
• Hydrology (surface water)
• Hydrogeology
• Acid and metalliferous drainage
• Capital and operating cost estimate
• Process design review
• Economic Modelling
• Min, process plant,
• Project services
• Project infrastructure closures

Mt Todd Gold Project

Situated approximately 250 km southeast of Darwin, Mt Todd is the largest undeveloped gold project in Australia.

As part of Tetra Tech Proteus’ on-going relationship with Vista Gold, we have successfully completed a Pre-Feasibility Study for the Mt Todd project and are currently conducting the Feasibility Study with other Tetra Tech branch companies in the United States. The Feasibility Study is expected to be completed in the first quarter of 2022. The proposed Mt Todd Gold Project will process 50,000 tonnes of Gold Ore per day through a de-risked processing plant. Work will also be delivered by colleagues from Tetra Tech branches in North America as part of a program to increase reserves and expand the mine’s lifespan.

Project lead: Ben McGrath