Montana's Free-Roaming Bison Herd Just Passed 1,000 for the First Time

For the first time in its history, American Prairie’s free-roaming bison herd has crossed into four digits. The conservation nonprofit counted 1,016 animals after this year’s calves arrived, a milestone more than two decades in the making. The herd grazes across 603,657 acres of Montana prairie that the group has pieced together over the years, with a long-term goal of a 3.2-million-acre reserve. For context, that would place it among the ten largest national parks in the Lower 48.

The celebration comes with a court battle attached. The Bureau of Land Management revoked American Prairie’s grazing permits in May 2026, arguing that the Taylor Grazing Act does not permit conservation as a use of public land. On September 4, a federal judge granted a preliminary injunction blocking the BLM from ordering the bison removed from three grazing allotments, so the herd remains on the land while the case moves forward. Montana adds another layer by classifying bison as livestock rather than wildlife, which regulates their movement like cattle.

The milestone matters beyond Montana. Bison today number as little as one to three and a half percent of their pre-industrial population, so every herd of this size is a meaningful step. It also raises a bigger question about what public lands are actually for. Should conservation count as a legitimate use alongside grazing and energy development?

Would you want to see a reserve like this expand into other states? Sound off in the comments.