Yellowstone Revises Bison Plan Amid Shifting Migrations
Published Date: 4/29/2026
Notice
Summary
Yellowstone National Park is updating its plan to manage bison because their migration patterns have changed and the old plan doesn’t fit anymore. This update affects park visitors, nearby communities, and tribal partners, aiming to keep bison wild and safe while handling health and safety concerns. You’ve got until May 29, 2026, to share your thoughts before the park finalizes the new plan.
Analyzed Economic Effects
3 provisions identified: 3 benefits, 0 costs, 0 mixed.
Community Protections for Disease and Damage
The SEIS will consider new actions to address brucellosis transmission and property damage caused by bison migrating out of the park. Nearby communities and property owners may see changes in how the park and partners work to limit disease spread and reduce damage to private property.
Visitor Safety and Bison Management
The National Park Service is preparing a Supplemental Environmental Impact Statement to update how Yellowstone manages wild, migratory bison because seasonal migrations are less predictable. The SEIS will develop new management alternatives that explicitly consider human safety, which could change how the park manages interactions between visitors and bison.
Tribal Trust Responsibilities Reviewed
The SEIS will include analysis that continues work to fulfill tribal trust responsibilities as part of updating the bison management plan. Tribal partners are explicitly named as parties the National Park Service will work with during development of new alternatives.
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