On November 12, 2025, the Mammoth Lakes Ranger District of the Inyo National Forest received a Plan of Operations (Plan) from KORE USA Ltd. (KORE) for their Long Valley Exploration Drilling project in Mono County, California. KORE plans to conduct exploration-level activities for deposits of gold.
Location
The project area is located approximately 6.2 miles east of Mammoth Lakes, on ten mining claims owned by KORE (Figure 1 – Location Map). All ten lode mining claims are found in portions of Section 26, T. 3S., R. 28E., Mount Diablo Base Meridian. (Figure 2 – Project Map).
Project timeline
1
NEPA Start Date
4/3/2026
2
Finding/Decision Date
NEPA / regulatory detail
| Categorical Exclusion | USDA-32d-USFS |