Defend A Bison Management Plan at Yellowstone National Park

The groups on this fight

4 groups work Idaho

By footprint, from the same match the STAND matchmaker runs; none is linked to this decision in our record yet. Give straight to them; nothing routes through us.

• Advocates for the West

  Works Idaho: represented Western Watersheds Project in the Jarbidge grazing litigation, winning 2004 and 2005 NEPA rulings, a 2009 injunction that grazing-as-usual must end, and a 2011 order closing 17 allotments across the 625,000-acre resource area..

• Center for Biological Diversity

  Works Idaho: plaintiff and co-counsel in the February 2025 lawsuit arguing federal wildlife agencies violated the Endangered Species Act by failing to protect salmon, steelhead, bull trout, and wolverine from the mine..

• Idaho Conservation League

  Works Idaho: mobilized Idahoans to file Interior Department comments defending Craters of the Moon during the 2017 national monument review, arguing shrinkage would damage the economies of Blaine, Butte, Minidoka, and Power counties..

• Western Watersheds Project

  Works Idaho: has litigated BLM grazing mismanagement across 1.4 million acres of the Jarbidge and Bruneau river canyonlands since the early 2000s, winning injunctions against permit overruns and Ninth Circuit-affirmed orders requiring allotment assessments and stream protections..

Every group above is on STAND for Public Lands, with its court record, its filings and who backs it.

The National Park Service is launching a supplemental environmental review to update its 2024 Yellowstone bison management plan because seasonal bison migration has become less predictable in timing and duration. The supplemental EIS will reassess management assumptions that no longer reliably reflect current bison movement patterns. This affects Yellowstone's bison herd, surrounding states and tribes involved in bison management, and adjacent public and private landowners who deal with bison leaving the park.

The National Park Service (NPS) intends to prepare a Supplemental Environmental Impact Statement (SEIS) to update the analysis in the Yellowstone National Park Bison Management Plan Final Environmental Impact Statement (EIS), 2024. Seasonal bison migration out of the park has become less predictable in timing and duration. This change affects the reliability of management assumptions that informed the 2024 analysis, warranting supplemental review.

Federal Register 2026-08277 ↗

More actions that need you