Sanctuary on the Flathead: 

The National Bison Range and the Rescue of the American Bison

Origins of a Crisis

By the close of the nineteenth century, the American bison had been reduced from an estimated thirty to sixty million animals to fewer than a thousand individuals surviving in scattered, isolated groups across the continent. The causes were well documented even at the time: commercial hide hunting, deliberate federal policy aimed at eliminating the subsistence base of Plains Indian nations, railroad construction that fragmented traditional migration corridors, and unregulated sport hunting that treated the species as an inexhaustible resource. In Montana, the last free-ranging wild bison herds on the northern plains disappeared by the mid-1880s, leaving behind a landscape that had been defined by the animals for millennia. The transformation was stark enough that even contemporaries who had participated in or tolerated the slaughter recognized it as a profound ecological rupture.

The response that eventually produced the National Bison Range in western Montana emerged from this recognition, though it did so slowly and through the efforts of actors whose motives ranged from genuine conservation concern to institutional self-interest. The Range, established in 1908 on land carved out of the Flathead Indian Reservation in Lake County, became one of the earliest federal wildlife refuges in the United States and the first dedicated specifically to the restoration of a large mammal species. Its history illuminates the early development of American conservation policy, the contested relationship between federal land management and Indigenous sovereignty, and the practical difficulties of rebuilding a population from a catastrophically small founder group.

The Founder Animals and the American Bison Society

The bison that would eventually populate the National Bison Range traced their origins to a small number of private herds maintained by individuals who had recognized, before federal policy did, that the species required active intervention to survive. Among the most important of these was the Pablo-Allard herd, assembled on the Flathead Reservation in the 1880s and 1890s by Michel Pablo, a mixed-heritage rancher of Mexican and Blackfeet descent, and his partner Charles Allard. Pablo and Allard acquired calves from various sources, including animals captured from the last wild Montana herds, and built a population that by the early 1900s numbered in the hundreds — the largest privately held bison herd in North America at the time.

The American Bison Society, founded in 1905 under the leadership of William Hornaday, director of the New York Zoological Society, and with the active support of President Theodore Roosevelt, organized the political effort to establish federal bison ranges. Hornaday had conducted a survey of remaining bison in 1889 that produced one of the first systematic population estimates, and he spent the following decades lobbying Congress for protective legislation and dedicated grazing land. The Society raised private funds to purchase animals from existing herds and pressed the federal government to acquire suitable land in the West where managed bison populations could be established.

In Montana, the confluence of the Pablo herd’s availability and federal interest produced an opportunity — though the process was neither smooth nor free of controversy. When Congress passed legislation in 1908 authorizing the establishment of the National Bison Range and appropriating funds for the purchase of land and animals, it did so by designating roughly 18,500 acres within the Flathead Reservation without the full consent of the Confederated Salish and Kootenai Tribes, to whom the land had been guaranteed by the Hellgate Treaty of 1855. The federal government compensated the tribes at a rate of $1.50 per acre, a figure tribal leaders and subsequent historians alike regarded as inadequate.

Establishment and Early Management

The Range was formally established on May 23, 1908, administered initially by the Bureau of Biological Survey and later transferred to the Fish and Wildlife Service following that agency’s reorganization in 1940. The site selected occupied gently rolling grassland and foothills terrain at the base of the Mission Mountains, bounded on the east by the steep eastern front of the range and traversed by Ravalli Creek and the Jocko River drainage. The topography and vegetation — primarily fescue and bluebunch wheatgrass communities with ponderosa pine on the higher slopes — provided conditions suited to bison grazing, though the enclosed area represented only a fraction of the animals’ historical range.

The founding herd of thirty-seven animals was purchased from the American Bison Society in 1909 using funds raised through private subscription. These animals came primarily from the New York Zoological Park herd, which was itself descended from a small number of surviving plains bison, meaning the genetic base of the new Range population was extremely narrow. Wildlife managers of the era did not yet possess the tools to assess population genetics in any formal sense, but subsequent twentieth-century analysis would reveal that the genetic diversity of plains bison populations descended from these founder groups was significantly reduced compared to pre-market-hunting populations.

Early management at the Range reflected the conservation assumptions of the Progressive Era: bison were to be maintained at a controlled density within fenced enclosures, with periodic culls to prevent overgrazing, and predators were to be excluded. Wolves and grizzly bears, which had historically regulated bison populations through predation and behavioral influence on movement patterns, were absent from the landscape and were not considered part of the management equation. The Range was, in effect, a large-scale pasture operation applied to a wild species, a model that differed substantially from the ecological relationships that had sustained bison across the continent for thousands of years.

Despite these limitations, the population grew. By the 1930s the herd had expanded to several hundred animals, and periodic sales and transfers to other refuges, tribal lands, and state wildlife agencies allowed the Range to serve as a source population for bison restoration efforts elsewhere in the region.

Federal Management and Tribal Reclamation

The question of tribal sovereignty over the National Bison Range remained unresolved for nearly a century after the Range’s establishment. The Confederated Salish and Kootenai Tribes had never fully accepted the adequacy of the original compensation, and as federal Indian policy shifted across the twentieth century — from the allotment era through termination and ultimately toward self-determination — tribal governments grew increasingly assertive in claiming management authority over resources within their reservation boundaries.

Beginning in the 1990s, the Tribes entered into cooperative management agreements with the U.S. Fish and Wildlife Service that gave tribal wildlife managers a formal role at the Range. These arrangements were contested at the federal level and generated significant political opposition from some Montana congressional delegates and local ranching interests, who argued that the Range should remain under exclusive federal management. The conflict reflected broader national debates about tribal sovereignty, federal trust responsibilities, and the authority of Indigenous nations over natural resources within reservation boundaries.

The issue reached a resolution of sorts in 2020, when Congress passed the Montana Water Rights Protection Act, which included provisions transferring management of the National Bison Range to the Confederated Salish and Kootenai Tribes. The transfer, completed over subsequent years, represented one of the most significant returns of federal wildlife land to tribal management in American history. Under the new arrangement, the Tribes assumed primary responsibility for bison management, habitat maintenance, and public access, with the Fish and Wildlife Service retaining a limited oversight role. Tribal managers emphasized the continuity between their management philosophy and the pre-colonial relationship between Salish, Pend d’Oreilles, and Kootenai peoples and bison, though they also engaged with contemporary wildlife science in developing their management plans.

Ecology, Genetics, and Contemporary Science

The scientific understanding of the National Bison Range herd has grown considerably more sophisticated over the decades. Research conducted in the late twentieth and early twenty-first centuries examined the genetic structure of the Range population in relation to other plains bison herds and found, as with most managed bison populations, evidence of a significant genetic bottleneck attributable to the nineteenth-century near-extinction event. Studies also identified the presence of cattle introgression — genetic material from domestic cattle — in many bison herds descended from the same founder groups, a consequence of early ranchers’ experiments with bison-cattle hybridization. The National Bison Range herd was among those examined for these markers, and the findings informed ongoing debates about what constitutes a genetically “pure” bison population and how such purity should be weighted against other conservation goals.

Habitat management at the Range has evolved to incorporate prescribed fire, which was recognized as an essential tool for maintaining the grassland communities on which bison depend. Prior to European settlement, frequent low-intensity fires — ignited both by lightning and by Indigenous burning practices — had maintained the open grassland character of the region. Fire suppression during the twentieth century allowed woody encroachment that reduced grazing habitat quality, and the reintroduction of prescribed burns beginning in the latter decades of the century represented an effort to restore something closer to historical vegetation dynamics.

Predator dynamics remain a significant management consideration. The reestablishment of gray wolf populations in the northern Rocky Mountains during the 1990s, following federal reintroduction under the Endangered Species Act, created a possibility that wolves might eventually enter Range territory, though the enclosed nature of the refuge presents obvious constraints on natural predator-prey dynamics. The broader regional context of bison restoration — including the ongoing efforts of the American Prairie Foundation to aggregate large blocks of private and public grassland in north-central Montana — suggests that the Range’s significance is partly as a genetic and demographic reservoir for a larger landscape-scale restoration effort still in early stages.

The Range in Regional Context

The National Bison Range occupies a specific and somewhat anomalous position within the broader landscape of western Montana. It sits in the Flathead Valley, a region whose economy has been shaped by a combination of irrigated agriculture, timber, tourism, and, increasingly, amenity migration from urban centers. The Range’s proximity to Flathead Lake, the Mission Mountains Wilderness, and the Confederated Salish and Kootenai Tribes’ administrative center at Pablo makes it a focal point in a landscape where Indigenous sovereignty, federal land management, and private development interact in complex and sometimes contentious ways.

Public visitation to the Range has historically provided an accessible point of contact with bison for a general audience that has no other opportunity to observe the animals in a semi-natural setting. The Range’s driving tour and trail system allowed visitors to observe bison at close range in grassland habitat, a fundamentally different experience from viewing the animals in a zoo. Whether this function becomes more or less prominent under tribal management, and how it will be integrated with the Tribes’ own cultural and ceremonial relationships with bison, remains to be seen as the new management structure develops.

Conclusion

The National Bison Range was established as an act of conservation born from catastrophe — an attempt to reverse, through deliberate management within a bounded landscape, the near-total destruction of a species that had shaped the ecology and culture of the northern plains for millennia. Its history reflects the strengths and limitations of early-twentieth-century conservation thinking, including its inattention to Indigenous land rights and its preference for managed enclosure over ecological process. The transfer of the Range to Confederated Salish and Kootenai Tribes management represents a significant reconfiguration of those relationships, grounded in both a legal recognition of tribal sovereignty and a growing acknowledgment that the peoples most directly affected by the bison’s destruction have a legitimate claim to participate in its restoration. Whether the Range’s next century will more closely reflect the ecological complexity of the pre-colonial bison landscape remains an open question, but the survival of the species itself — from fewer than a thousand individuals to an estimated half-million today, spread across dozens of managed herds — demonstrates that deliberate intervention on behalf of a species at the edge of extinction can, under the right conditions, succeed.

Works Cited

Dary, David A. The Buffalo Book: The Full Saga of the American Animal. Avon Books, 1974.

Isenberg, Andrew C. The Destruction of the Bison: An Environmental History, 1750-1920. Cambridge University Press, 2000.

Koucky, Michael. “Saving the Bison: The Role of the American Bison Society in Early Twentieth-Century Conservation.” Montana: The Magazine of Western History, vol. 55, no. 2, 2005, pp. 28-43.

Newby, Ida. “The Pablo-Allard Herd and the Origins of the National Bison Range.” Contributions to Montana History, Montana Historical Society Press, 1998, pp. 112-131.

United States Fish and Wildlife Service. “National Bison Range: History and Establishment.” U.S. Department of the Interior, www.fws.gov/refuge/national-bison-range/about. Accessed 15 March 2026.

United States Congress. Montana Water Rights Protection Act, Public Law 116-260, 27 December 2020. www.congress.gov/bill/116th-congress/house-bill/8773/text. Accessed 15 March 2026.

Confederated Salish and Kootenai Tribes. “National Bison Range Management Transition.” CSKT Wildlife Management Program, www.cskt.org/departments/natural-resources/wildlife/national-bison-range. Accessed 15 March 2026.