Nez Perce Tribe

Stibnite Gold Project Approval

Stibnite Gold Project Approval

Case: Save the South Fork Salmon, Idaho Conservation League, Idaho Rivers United, Earthworks, Center for Biological Diversity, and American Rivers v. U.S. Forest Service, et al.

August 25, 2026 — Advocates for the West and our partners filed an appeal seeking to reverse federal agencies’ unlawful approval of the Stibnite Gold Project and halt Perpetua Resources’ initial mine construction. The proposed open-pit cyanide leach gold mine would jeopardize public health and clean water, harm threatened species and permanently scar thousands of […]

Stibnite Mine Air Quality Permit

Stibnite Mine Air Quality Permit

Case: Idaho Conservation League and Save the South Fork Salmon v. Idaho Department of Environmental Quality and Idaho Board of Environmental Quality

November 7, 2025 — Advocates for the West and our partners filed our opening brief in our state court case challenging the air pollution permit issued for the Stibnite Gold Mine. September 18, 2025 — An Ada County judge ruled in favor of Advocates for the West and our partners, denying DEQ’s motion to dismiss […]

Perpetua Resources (formerly Midas Gold) Clean Water Act Violations

Perpetua Resources (formerly Midas Gold) Clean Water Act Violations

Case: Nez Perce Tribe v. Perpetua Resources, Corp., et al.

October 2, 2023 — The Court approved settlement of the Stibnite Clean Water Act lawsuit with Nez Perce Tribe recovering $4 million for water quality improvement in the South Fork Salmon River and $1 million in attorney fees and litigation costs. August 8, 2023 — Mining company Perpetua Resources (formerly Midas Gold) will pay the […]