Montana Governor Greg Gianforte and two agencies have raised a lawsuit to challenge the Yellowstone National Park's way of managing its bison herd, arguing that it violates federal laws.

The National Park Service’s plan to increase bison herd sizes has drawn criticism from state officials concerned about disease transmission. Montana’s governor and state agencies filed a ...

It’s the latest escalation in a decades-long conflict between state and federal officials over management of bison herds in Yellowstone National Park. The core issue is about how to manage the animals ...

Greg Gianforte’s administration has sued to have Yellowstone National Park’s bison management plan nullified. The 51-page lawsuit, filed on Dec. 31 in Billings District Court, names the ...

The bison plan was finalized in 2024 amid protests from the Gianforte administration, first outlined in a 17-page letter in 2023.

In Montana, bison have been a political pariah since the disease brucellosis was detected in Yellowstone National Park bison in 1910. The bacteria can cause pregnant animals to abort, may cause ...

Montana is suing Yellowstone National Park over a plan to increase the number of bison in and around the park and establish greater tolerance for their presence outside its boundaries. In a press ...

argues that park officials have intentionally cut Montana out of management plans or ignored the park’s own science in an effort to boost Yellowstone National Park bison numbers and skirt ...

"There's a big effort to get buffalo out of Yellowstone to tribes. A lot of tribes are interested in those Yellowstone genetics to enhance the heterogeneity of other herds," — ...