WINNEMUCCA — A 30-day scoping period is open for a Plan of Operations Amendment (Plan) for the Valmy Expansion of the Marigold Mine. The Valmy Expansion purpose will be to mine for gold.
The Plan includes open pit expansions, waste rock storage area modifications, a new above-ground powerline, haul road modifications, heap leach pad cell development, the addition of one new process pond, changes to infill disturbance, and changes to other ancillary facilities. Total new disturbance proposed under the Plan is approximately 1,092 acres. This would result in a total authorized disturbance within the Plan boundary of 9,235.8 acres, with 4,163.7 on public land and 5,072.1 on private land. The proposal would not extend the mine life or change personnel numbers but would provide additional operational flexibility for the currently authorized activities planned through 2037.
“The Marigold Mine has been mined continuously since 1988,” said Humboldt River Field Office Manager, Kathleen Rehberg. “New mining disturbance will occur primarily in the Valmy area, which was previously mined by Newmont Mining Company,”
Existing pits include the Valmy, Mud, and Section 29 Pits. Multiple roads and waste rock storage areas are also present. Other existing disturbance within the plan boundary, not created by the company, include historic roads and two-tracks associated with past mineral exploration, existing gravel pits, powerline construction, and fire.