Dateline’s Flagship
Colosseum Gold Mine
Dateline’s 100% owned Colosseum Gold Mine in San Bernardino County, California, hosts a large 1.1Moz JORC-2012 Mineral Resource on patented claims, existing Mining Rights and an approved Plan of Operation.
The May 2025 Colosseum Gold Scoping Study (Updated) was based on producing 635,000 ounces from below the existing South and North pits at Colosseum, which ceased mining in mid-1992 when the gold price was US$340 per ounce.
The Scoping Study outlined an initial 8-year production plan averaging 75koz, undiscounted pre-tax free cash flow of US $827M, NPV 6.5% of US$550M and IRR of 61%. A Bankable Feasibility Study is underway based on a timely development within the existing Mining Rights and approved Plan of Operation.
Within the larger Colosseum Project, Dateline has demonstrated the potential for rare earth mineralisation, with mapping, geophysics and geochemistry confirming a genetic geological link to the operating Mountain Pass Rare Earth Mine, 10km (6 miles) to the south. A large scale drill program is planned to commence in H2 2025.