Stibnite

Case: Idaho Conservation League, Idaho Rivers United, Save the South Fork Salmon, and Earthworks v. Idaho Department of Environmental Quality

February 27, 2026 — Representing Idaho Conservation League, Idaho Rivers United, Earthworks, and Save the South Fork Salmon, Advocates for the West along with co-counsel at the Western Environmental Law Center filed a petition for review with the Idaho Department of Environmental Quality (DEQ) challenging a permit the agency issued early this year to Perpetua […]

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 […]

Case: Idaho Conservation League, Idaho Rivers United, Save the South Fork Salmon, and Earthworks v. Idaho Department of Environmental Quality

August 7, 2026 — Advocates for the West filed our opening brief in this matter challenging a Clean Water Act Section 401 water quality certification issued by the Idaho Department of Environmental Quality. In May 2026, we filed an amended appeal of a water pollution permit issued under Section 401 of the federal Clean Water […]

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 […]

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 […]