Federal Judge Directs BLM to Improve Sage-Grouse Data in Montana Grazing Permits
A federal judge ordered the BLM to enhance sage-grouse population data for Montana grazing permits.
Why it matters: Improving sage-grouse data will strengthen environmental assessments that affect public land grazing permits. Legal professionals advising on land use and regulatory compliance should track these changes carefully.
- On November 14, 2026, a federal judge directed the BLM to improve environmental assessments for Montana grazing permits with better sage-grouse data.
- The judge upheld the current environmental assessment but required more accurate species data collection going forward.
- The greater sage-grouse faces habitat loss because of cropland conversion and energy development in Montana’s sagebrush steppe.
- BLM manages 155 million acres of public lands with nearly 18,000 grazing permits across more than 21,000 allotments covering sage-grouse habitats.
On November 14, 2026, a federal court ordered the Bureau of Land Management (BLM) to improve its environmental assessment for grazing permits in Montana by providing more accurate data on the greater sage-grouse population. The court required enhanced data collection but declined to vacate the existing assessment.
The greater sage-grouse, known for its distinctive mating displays, lives in the sagebrush steppe of Montana. Its population has declined due to habitat loss and fragmentation driven by cropland conversion and new energy development. This information comes from Montana Fish, Wildlife & Parks.
BLM administers livestock grazing on around 155 million acres of western U.S. public land. It issues nearly 18,000 permits covering more than 21,000 allotments. Many of these allotments overlap with sage-grouse habitats, creating regulatory challenges balancing livestock use and species conservation.
The court’s ruling increases scrutiny on the BLM's compliance with environmental laws. It calls for more robust, accurate population data to better guide land management decisions protecting the species. Legal and land management professionals should note that while current grazing permits remain valid, future permits may reflect the improved assessments.
By the numbers:
- 155 million acres — public lands managed by BLM with grazing permits
- 18,000 permits — grazing permits issued by BLM in western U.S.
- 21,000 allotments — livestock grazing areas overlapping sage-grouse habitat
What's next: BLM must update its environmental assessment methodology to comply with the court order, affecting future Montana grazing permits.