Castle Mountain is an operating heap leach and mill gold mine located in California, USA north of Equinox’s Mesquite mine. Castle Mountain is being developed by Equinox in two stages, Phase 1 and Phase 2. Phase 1 is currently operating at the JSLA, Jumbo and Oro Belle pits with an expected production of 30-40Koz of gold annually. Phase 2, which is expected to begin in 2026 and includes South Domes, is projected to expand production to more than 200koz of gold annually. Castle Mountain is poised to become one of the USA’s largest gold mines with an expected annual output of 218Koz and total all-in sustaining cost of $858/oz over the 14-year Phase 2 mine plan. Castle Mountain currently boasts 4.2Moz of gold reserves, of which South Domes covers more than 1.1Moz gold reserves. Equinox has outlined the potential to expand the 2021 Feasibility Mineral Reserve pits to ultimately connect the JSLA and South Domes pits, exploration work is currently ongoing.
Interest: 5% NSR Royalty
Location: California, USA
Project Status: Phase 1 Production
Counterparty: Equinox Gold (NYSE: EQX)