In 2005, 16 bison from
Wind Cave National Park in South Dakota were released. A series of plains bison deliveries totaling about 180 were also made from
Elk Island National Park between 2011 and 2016. These herds have minimal cattle gene
introgression. , the 800 bison move freely throughout the Sun Prairie unit and portions of the Dry Fork and White Rock units of the reserve. While the majority of the grazing has been on their deeded holdings, the BLM in 2022 authorized converting permits on some leased lands which would allow American Prairie to grow the herd to 1,000 animals by 2025. In Montana, bison are legally classified as domestic livestock. The bison are managed under applicable state laws while minimizing livestock handling techniques. The bison are sourced from certified brucellosis-free herds and are vaccinated and disease-tested like other livestock in the state. The reserve installs proper fencing to keep bison contained within the specific sites, including a solar-powered electric wire strung across all exterior wildlife friendly fencing. Semi-annual bison handling operations are held to complying with state and federal regulations, monitor overall herd health and maintain appropriate stocking rates. Blood samples are taken for disease work, and hair samples for genetic testing and trace mineral sampling. Bison are give an
ear tag and
PIT tag if the animal doesn’t already have them.
Native tribal nations The land has been the home of generations of Indigenous people, including the Aaniiih (
Gros Ventre), the
Niitsitapi / Pikuni (Blackfeet), the
Nakoda / Nakona (
Assiniboine), the
Lakota /
Dakota (
Sioux),
Apsáalooke (Crow),
Ojibwe /
Annishinabe / Ne-i-yah-wahk (
Chippewa Cree), and
Métis (
Little Shell Chippewa). The organization prioritizes distributing bison to Native tribal nations with active and well-managed bison restoration programs. The organization's goal is to share with those who have a similar vision of moving bison conservation forward. These partnerships are with Native tribes who are working to restore a deeper cultural, spiritual and economic connection to bison. AP regularly distributes or exchanges bison to enhance the genetic health of conservation and tribal herds. Thirty-five bison were donated in February 2021 to the
Wolakota Buffalo Range in South Dakota along with an intent to contribute up to 170 bison to the herd.
Wildlife-friendly ranch management American Prairie leases grass to local ranchers for approximately 10,000 head of cattle on its properties in Phillips,
Valley,
Fergus,
Blaine and
Petroleum counties. Ranchers in the region were also invited to adhere to certain wildlife-friendly standards through American Prairie's Wild Sky ranching program. The wildlife-friendly ranch management is contingent on continuing to leave the native prairie untilled. Nine other standards individually increase the premiums paid out: installing wildlife-friendly fences, rejuvenating native plant communities through prescribed burns, keeping cattle out of
riparian areas, and agreeing not to harm predators. Enrolled landowners using motion-sensing
camera traps set up on their properties can earn per-species payments for images captured of large carnivores such as
cougar or black bear. The data collected helps AP and other landowners learn how wildlife uses their property. The ranching community in Phillips County has also responded to programs by
The Nature Conservancy that include progressive efforts such as bird counts, managing their land to promote wildlife, and using rotational grazing techniques often referred to as “
regenerative agriculture,” which emphasizes grassland health as much as beef sales. The within the American Prairie focal area is owned by the Nature Conservancy. Ranchers who pledge to follow wildlife-friendly practices on their own land can graze cattle at a low cost on the ranch. The Family South Ranch had a Montana Fish, Wildlife & Parks’ conservation easement before being acquired by American Prairie. This program puts limits on development, requires a sustainable livestock grazing plan, and allows public access for hunting and fishing.
Reactions by cattle ranchers and legislators The reception for the creation of the reserve among the ranchers in the sparsely populated area has been mixed. There has been a strong reaction from many who intend to continue grazing cattle. Bison in Montana are a controversial topic although they are raised for meat in other parts of Montana and throughout the United States. The idea of free-ranging bison in the area raises concerns about disease with anything from
anthrax and
mad cow disease to the dreaded bovine
brucellosis, competition for forage by elk and deer, public safety and damage to private property such as fencing. Evidence of the continuing concerns can be seen in signs posted with the message "Save The Cowboy, Stop The American Prairie Reserve" and organized opposition such as the United Property Owners of Montana and the Ranchers Stewardship Alliance of South Phillips County. The designation of the Upper Missouri River Breaks National Monument in 2001 was viewed by some ranchers as a federal land grab that would ultimately displace them although it allowed for the continuation of existing grazing permits. There is a sentiment that the reserve is threatening and lacks respect for a culture that for more than 150 years has preserved the unplowed prairie that now makes this the ideal location where the vision to return this landscape to what it was like before white settlers arrived can be fulfilled. Ranching families are losing their neighbors as cattle ranches are purchased for the reserve. A longtime rancher and property owner, who is within the bounds of the planned reserve, says this is an assault on her business, culture and those living and working here and that the area is good for growing production livestock which has been the highest purpose of the land for over 100 years. The plan for the reserve is clear that it will be amidst an area where the predominant economic activity will remain the raising of cattle on homestead parcels along with adjacent rangeland leased from the federal government. AP's vice president and chief external relations officer estimated that there is a half a million head of cattle in the seven county area where AP is based and seeks to be a good neighbor. Bison under Montana law are classified as private
livestock overseen by the Department of Livestock. APF requested a modification of the terms of the grazing permits it had acquired to allow for year-round grazing and a change of use from cattle to bison grazing in Chouteau, Fergus, Petroleum, Phillips and Valley counties. The proposal included fortifying existing external boundary fences by replacing the second strand from the top with an electrified wire, converting to wildlife-friendly standards, and removing interior fences. AP reduced the initial request in 2017 for grazing allotments on of federal land in Phillips County only with 10 year leases. While the decision only applies to the BLM land, the bison project area includes of state land administered by the Montana Department of Natural Resources and Conservation and of AP deeded land. In 2019, the
Montana House of Representatives passed a resolution asking the
U.S. Bureau of Land Management (BLM) to deny the bison grazing proposal from the American Prairie. The BLM issued a proposed decision approving various elements of the proposal in March 2022. The BLM cited research that the bison grazing will increase plant and animal diversity, improve water quality, and overall habitat conditions. The BLM made its official decision in July which was justified by an analysis that showed the plan wouldn’t have a significant environmental impact. Montana Stockgrowers Association, Governor
Greg Gianforte and Montana Attorney General
Austin Knudsen filed appeals to the approval. These federal grazing lands are intermixed with state trust lands which are managed by the BLM for the state. A revised fencing regime was adopted to avoid state trust lands. Bison are often the target of bills before the state legislature. Other bills have sought to limit APF’s activities as a nonprofit organization that acquires property. In 2026, their permit to graze its bison on federal land was revoked by the
second Trump administration which sided with cattle ranchers and Montana Republicans.
Research Papers published include studies of
beavers, cougars,
upland game birds like the
Greater sage-grouse, bison and pronghorn
migration ecology, and research on the endangered swift fox. The
Smithsonian Conservation Biology Institute began studies in 2018 on how grazing cattle and bison affect biodiversity and the biodiversity of prairie dogs. This will assist in designing a restoration program for black-footed ferrets. A Smithsonian project sought to identify how grazing patterns of different mammals (bison, cattle, prairie dogs) impacted the abundance and diversity of plant and insect communities. Another study involved the collective movement behavior of the bison on the Sun Prairie unit. Using a lightweight, inexpensive, solar-powered
GPS tracking unit attached to the ear, they are studying how groups make decisions and move together as a unit. ==Access==