Ridgeline Minerals Reports Additional Assays for the Chinchilla Sulfide CRD Discovery at the Selena Project, Nevada
High-Grade CRD Discovery at Selena Validates Deep-Target Strategy as Partner-Funded Exploration Offsets 100%-Owned Project Misses

The most recent news (December 18, 2025) provides the full assay results for discovery drillhole SE25-053 at the Selena Project in Nevada. The hole intersected three distinct high-grade Carbonate Replacement Deposit (CRD) horizons with a cumulative mineralized thickness of 27.2 meters. Key intercepts included 1.1m at 766.4 g/t AgEq (including 27% Zinc) and 17.4m at 219.9 g/t AgEq. This news follows the November 4, 2025, announcement of the visual discovery and confirms high-grade polymetallic mineralization at depth (943m to 1,077m). The drilling is funded by partner South32 as part of an earn-in agreement.
- Project Validation: The assays confirm that the kilometer-scale Magnetotellurics (MT) anomaly identified earlier in 2025 is indeed associated with high-grade sulfide mineralization. This significantly de-risks the Chinchilla Sulfide target.
- Strategic Partnership: The results reinforce the value of the South32 earn-in. South32 is funding 100% of this exploration, allowing Ridgeline to retain a 20-40% interest in a potential major discovery without immediate capital outlays for these deep, expensive holes.
- Resource Potential: Intersecting multiple "stacked" sulfide lenses suggests a robust hydrothermal system. However, the depth of the intercepts (nearly 1km) implies that any future mine would require high grades and significant scale to be economically viable.
- Asset Contrast: The success at Selena (partner-funded) contrasts sharply with the company’s 100%-owned projects (Big Blue and Atlas), which yielded disappointing or early-stage results in mid-2025.
Ridgeline Minerals is a Nevada-focused explorer using a hybrid model of 100%-owned projects and high-value joint ventures with majors. - Flagship Project: The Selena Project (CRD/Silver-Gold-Zinc). It is located in White Pine County, Nevada, adjacent to Freeport-McMoRan’s Butte Valley project. - Strategy: The company leverages partner funding (South32, NGM) for deep, high-risk/high-reward targets while self-funding maiden programs on shallower targets.