Federal Court Upholds Bison Grazing Rights on Montana Prairies

Guardians of the Plains: Bison Secure Their Right to Roam in a Landmark Ruling

Judicial Intervention Halts Federal Bison Relocation Order

A recent court mandate has temporarily suspended a federal directive aimed at displacing close to a thousand bison from their established grazing areas on public property in Montana. This judicial intervention means the animals, integral to the ecosystem of the American Prairie, will retain their access to these lands, at least for the time being.

The Genesis of the Legal Challenge: American Prairie vs. BLM

The core of this legal dispute originates from a directive issued by the Bureau of Land Management (BLM) in May, which sought to evict bison from specific public segments of the American Prairie. This expansive non-profit sanctuary encompasses over 600,000 acres, combining private holdings with public grazing leases across Montana's shortgrass prairie, offering public access for activities like camping, wildlife observation, and hiking.

Reinterpreting Grazing Laws: A Clash of Definitions

The BLM initially sanctioned grazing permits for these bison in 2005. However, their recent removal order stems from a reinterpretation of the Taylor Grazing Act. This act empowers the department to grant livestock permits for public grazing, but the BLM's revised definition now seeks to restrict "livestock" to solely "production-oriented" animals.

Court Rejects Narrow Interpretation of Livestock Grazing

U.S. District Court Judge Brian Morris strongly disagreed with the BLM's redefinition. He asserted that no legal statute or prior judicial ruling demands livestock operations to exclusively prioritize production while disregarding vital aspects such as conservation, land improvement, or environmental preservation. Judge Morris emphasized that legislative intent acknowledges that livestock grazing and management frequently incorporate preservation, enhancement, and judicious development, in harmony with other land uses.

Bison Remain on American Prairie Amidst Ongoing Legal Proceedings

Consequently, the bison will continue to inhabit their leases on the American Prairie as the lawsuit progresses. This ruling effectively postpones the BLM's original removal deadline, which was set for September 30. Had the order been enforced, the preserve would have faced the difficult decision of culling or relocating hundreds of bison, as articulated by Beth Saboe, American Prairie's director of public relations, in May 2026.

The Ecological and Economic Impact of Bison Removal

Beyond the substantial financial burden on American Prairie, Saboe highlighted that displacing bison from public lands would divest a restorative species from its natural habitat. The uncertainty surrounding the herd also led to the cancellation of the American Prairie's public bison harvest for 2026, impacting both ecological and economic facets of the preserve's operations.

Support and Opposition: A Diverse Stakeholder Landscape

While the permit revocation garnered backing from the Montana Stockgrowers Association and numerous local ranchers, it faced considerable opposition from American Prairie's tribal partners. J. Garret Renville, chairman of the Coalition of Large Tribes, emphasized in a January 2026 letter to the Secretary of the Interior that American Prairie has been instrumental in providing animals and collaborating with tribes to expand their own herds. He noted that the organization's bison rearing practices closely mirror those employed by tribal herd managers.

BLM's Inconsistent Stance on Bison and Rangeland Health

In his decision, Judge Morris expressed difficulty in comprehending how the BLM's imposition of new regulations, while disregarding evidence presented by American Prairie, could align with legal principles. The BLM's redefinition aimed to limit grazing to animals primarily used for producing meat, milk, fiber, or other products, or those assisting in the management of such production-oriented animals. Ironically, the BLM itself concluded in 2022 that bison grazing would enhance rangeland productivity and riparian health on the very same lands it now seeks to clear of bison.

Bison: A Keystone Species for Prairie Ecosystems

Should American Prairie ultimately lose the right to graze bison, replacing them with cattle could potentially degrade the land. Cattle often concentrate their grazing in small areas, leading to overgrazing, whereas bison graze more diffusely and continuously move across the landscape, covering several miles daily. Studies indicate that this natural grazing pattern of bison significantly boosts biodiversity and strengthens drought resilience in native grasslands. Saboe reiterated in May that bison are the native ungulates that co-evolved with the prairie, serving as a keystone species whose presence profoundly improves rangeland health.

Limited Scope of the Court's Preliminary Injunction

The court's preliminary injunction safeguards the three federal allotments where American Prairie bison currently graze. However, it did not extend protection to three additional tracts where bison are not yet present. Alison Fox, CEO of American Prairie, celebrated the ruling, stating that it offers bison a chance to remain on their native landscape, emphasizing their two decades of federally authorized grazing without violations and the court's recognition of the significant harm their removal would inflict on their work, tribal partners, and broader conservation efforts.