BARRICK MINING CORP

Open Pit

The Carlin Complex has four major open pit operations including Goldstrike, Gold Quarry, Goldstar (part of the Genesis/Tri-Star pits), and South Arturo (which returned to production in December 2022). All of these are truck and shovel operations. Blasting is required and blast patterns are laid out according to material type, using rock type designations of hard, average, soft or a combination of the three. The pit design varies between 6.1-meter to 12.2-meter (20 to 40 foot) benches. Slopes vary based on location.

The mine equipment fleet will be used throughout the mine life and is shared with the other mines at the Carlin Complex. The number of loading and hauling units allocated to each deposit varies depending on the operational needs from the mine plans. The equipment list also includes the auxiliary equipment needed to support mining and there-handling of the ore from the stockpile pad into the mill feeders.

In early 2024, geotechnical issues at Gold Quarry led to a pit wall failure that triggered a redesign of the open pit and resulted in slower mining rates as Nevada Gold Mines works through the historic underground workings. This has also caused Nevada Gold Mines tore-evaluate its mine design for Phase 6 and additional drilling and hydrological engineering is required before mining can occur at full production rates. While this work continues, the majority of mining has been redirected to South Arturo.