Sovereign Ground:

The History of the Flathead Indian Reservation in Montana

Introduction

In the mountainous northwestern corner of Montana, the Flathead Indian Reservation encompasses roughly 1.3 million acres of some of the most geographically varied terrain in the American West. Home today to the Confederated Salish and Kootenai Tribes, the reservation stretches from the Mission Mountains in the east to the Cabinet Mountains in the west, incorporating the southern half of Flathead Lake — the largest natural freshwater lake west of the Mississippi River. The history of this land and its peoples reaches back thousands of years, but the story of the reservation itself begins in the mid-nineteenth century, when a series of federal treaty negotiations, land cessions, and policy shifts fundamentally transformed the political and territorial landscape of the northern Rocky Mountain region.

The Peoples Before the Reservation

The Confederated Salish and Kootenai Tribes are the political union of three distinct but related peoples: the Séliš (Salish, also called the Flathead), the Qlispé (Pend d'Oreilles), and the Ktunaxa (Kootenai). Each group had its own language, territorial range, and social structure, though all three shared long histories in the region encompassing present-day northwestern Montana, northern Idaho, and adjacent portions of Canada.

The Salish occupied territories extending from the Bitterroot Valley northward, and were experienced equestrian hunters who regularly crossed the Continental Divide to pursue bison on the plains. The Pend d'Oreilles centered much of their subsistence around the lakes and rivers of the interior, including Flathead Lake and the Clark Fork drainage. The Kootenai, whose language is a linguistic isolate unrelated to any neighboring tongue, ranged across the mountain valleys of northwestern Montana and adjacent British Columbia and Idaho. All three peoples maintained complex trade networks, diplomatic relationships, and ceremonial traditions that predated European contact by millennia.

The term "Flathead," applied by Euro-American traders and officials to the Salish-speaking peoples of this region, is a misnomer with disputed origins. Unlike some coastal peoples who practiced head-flattening as a cultural marker, the Salish did not. The name appears to have originated in sign-language conventions used on the plains, where the gesture for the Salish indicated a flat or level hand near the head. Regardless of etymology, the designation persisted in federal documents and ultimately became embedded in the reservation's official name.

The Hell Gate Treaty of 1855

The legal foundation of the Flathead Indian Reservation is the Hell Gate Treaty, negotiated in July 1855 at a site near present-day Missoula, Montana. The treaty council was organized by Isaac Stevens, the first governor and superintendent of Indian affairs for Washington Territory. Stevens was conducting a sweeping series of treaty negotiations across the Pacific Northwest in that year, seeking to extinguish Native land titles and open the region to American settlement and railroad development.

The Hell Gate Treaty, formally titled the Treaty with the Flathead, Pend d'Oreilles, and Kootenai, was signed on July 16, 1855. Under its terms, the three tribes ceded a vast swath of territory in exchange for the establishment of a defined reservation, annuity payments, the right to hunt and fish in usual and accustomed places outside the reservation boundary, and federal commitments to provide agricultural and educational assistance. The reserved territory was to be located in the Jocko Valley, encompassing the drainage of the Jocko River in what is now Lake and Sanders counties.

One of the most consequential and contentious provisions of the Hell Gate Treaty concerned the Bitterroot Valley. A significant portion of the Salish, led by Chief Victor, refused to leave their ancestral homeland in the Bitterroot, arguing that the treaty language allowed them to remain until a presidential survey determined whether the Bitterroot or the Jocko Valley was the better site for the reservation. For more than fifteen years, Salish families continued to occupy the Bitterroot, farming, raising stock, and coexisting — sometimes uneasily — with increasing numbers of white settlers.

The Bitterroot Removal of 1891

The question of the Bitterroot Salish was resolved, or rather forced to resolution, by the Garfield Agreement of 1872. Negotiated by James Garfield, then a congressman acting as a federal commissioner, the agreement purported to extinguish Salish title to the Bitterroot Valley. Chief Charlot, son and successor of Chief Victor, refused to sign. A fraudulent copy of the agreement bearing Charlot's name nonetheless circulated in federal records for years, an episode that became a widely known symbol of the duplicity that characterized federal Indian policy in this era.

Despite Charlot's resistance, federal pressure on the Bitterroot Salish intensified through the 1880s as white settlement accelerated and the political will to remove the remaining Native population hardened. In 1891, Charlot and the last Salish families in the Bitterroot were relocated to the Flathead Reservation by U.S. Army escort. The removal was conducted in October, a late-season march through cold weather. Charlot arrived on the reservation as a man in his sixties, having spent decades defending his people's right to their homeland. He died on the Flathead Reservation in 1910, never having acknowledged the legitimacy of the removal.

The Allotment Era and the Opening of the Reservation

The late nineteenth and early twentieth centuries brought a new wave of federal pressure in the form of the Dawes Act of 1887, which mandated the division of tribal lands into individual allotments. The policy was explicitly designed to dissolve communal land tenure, accelerate Native assimilation, and open "surplus" reservation lands to non-Indian homesteaders.

The Flathead Reservation was allotted under a specific act of Congress passed in 1904, commonly known as the Flathead Allotment Act or the McCumber Act. Under the act, tribal members received individual allotments — typically 80 to 160 acres — while lands remaining after allotment were declared surplus and opened to homestead entry. The opening occurred in 1910, when approximately 1.1 million acres of the reservation were made available to non-Indian settlers through a government land lottery. The event drew tens of thousands of applicants from across the country.

The consequences were profound and lasting. Large portions of the reservation passed out of tribal ownership. Non-Indian homesteaders established farms, towns, and communities within the reservation boundaries. The demographic and economic character of the region was altered permanently, and the checkerboard pattern of land ownership that resulted — alternating parcels of tribal, allotted, and fee-simple land — created administrative and jurisdictional complications that persist to the present day.

By the early twentieth century, the reservation's land base had been dramatically reduced and fragmented. Federal irrigation projects, including the Flathead Indian Irrigation Project begun in 1908, further complicated the picture, drawing non-Indian water users into close relationship with reservation resources while often failing to deliver equitable benefits to tribal members.

Tribal Governance and the Indian Reorganization Act

The Indian Reorganization Act of 1934, sometimes called the Wheeler-Howard Act, marked a significant shift in federal Indian policy. The act ended further allotment, restored some surplus lands to tribal ownership, and encouraged the development of formal tribal governing structures. The Confederated Salish and Kootenai Tribes adopted a constitution and bylaws under the act in 1935, establishing a tribal council as the governing body and creating a framework for self-government that, while still subject to federal oversight, represented a meaningful departure from the assimilationist policies of the preceding decades.

The tribal government that emerged from this period developed steadily through the mid-twentieth century, negotiating with federal agencies, managing tribal resources, and advocating for treaty rights. The tribes pursued claims through the Indian Claims Commission established in 1946, seeking compensation for lands ceded under the Hell Gate Treaty at inadequate valuations.

Self-Determination and Contemporary Governance

The federal policy of self-determination, formalized through the Indian Self-Determination and Education Assistance Act of 1975, opened new possibilities for tribal control over reservation programs and resources. The Confederated Salish and Kootenai Tribes became one of the more prominent examples of tribal self-governance in the region, assuming administrative control over health services, education, natural resources management, and law enforcement functions previously administered by the Bureau of Indian Affairs.

Among the most significant resource management achievements of the modern era was the tribes' involvement in the negotiation of the Flathead Water Compact and, more visibly, their acquisition of operational control over Kerr Dam, a major hydroelectric facility on the Flathead River. The dam, built in the 1930s by a private utility company on tribal lands, was a source of ongoing contention over power revenues and resource rights for decades. In 2015, the tribes acquired the dam outright, renaming it Séliš Ksanka Qlispé Dam, and took over its operation — a development widely noted as a landmark in tribal economic sovereignty.

The tribes have also pursued active management of natural resources, including the National Bison Range, a federal wildlife refuge established in 1908 on former reservation lands. After decades of advocacy, the tribes reached an agreement with the federal government in 2020 to transfer management of the bison range to tribal control, a development with both practical and symbolic significance given the bison's centrality to the cultural and subsistence traditions of the plains-hunting Salish.

Land and Community Today

The Flathead Reservation today is home to approximately 8,000 enrolled tribal members, alongside a substantial non-Indian population that reflects the legacy of the 1910 land opening. The towns of Pablo, Ronan, Polson, St. Ignatius, Arlee, and Hot Springs lie within the reservation boundaries, as do significant portions of Flathead Lake and the lower Flathead River corridor.

The checkerboard land ownership created by allotment remains a defining feature of the reservation landscape and a persistent challenge for tribal governance. Efforts to consolidate tribal land ownership through purchase of former allotments and fee lands have continued across successive generations, slowly restoring acreage to the tribal land base.

The Confederated Salish and Kootenai Tribes operate a diversified economic base that includes gaming, forestry, agriculture, and tourism. Salish Kootenai College, a tribally chartered institution established in 1977, provides higher education and workforce development within the reservation community and has developed a national reputation in the field of tribal college education.

Cultural preservation programs, language revitalization efforts, and the maintenance of ceremonial traditions reflect the determination of tribal members to sustain identities and practices that federal policy once sought to eradicate. The Salish, Pend d'Oreilles, and Kootenai languages remain the focus of active teaching and documentation programs, even as all three face the demographic pressures common to indigenous languages across North America.

The history of the Flathead Indian Reservation is not a history of decline arrested or of a community preserved in amber. It is a history of peoples who negotiated, resisted, adapted, and governed across nearly two centuries of disruption — and who continue to do so on ground that, despite everything, remains theirs.

Works Cited

Bigart, Robert, and Clarence Woodcock. "The Flathead Reservation: Nineteenth Century Overview." Montana: The Magazine of Western History, vol. 33, no. 4, 1983, pp. 16–29.

Confederated Salish and Kootenai Tribes. "Tribal History." Confederated Salish and Kootenai Tribes Official Website, cskt.org/tribal-government/tribal-history/. Accessed 14 Mar. 2026.

Fahey, John. The Flathead Indians. University of Oklahoma Press, 1974.

Lopach, James J., et al. Tribal Government Today: Politics on Montana Indian Reservations. Revised ed., University Press of Colorado, 1998.

Montana Historical Society. "Hell Gate Treaty, 1855." Montana Historical Society Research Center, mhs.mt.gov/education/indiannations/HellGateTreaty. Accessed 14 Mar. 2026.

Ronan, Peter. History of the Flathead Nation. Ross and Haines, 1890. Reprinted by Montana Historical Society Press, 1965.

Superintendent of the Flathead Indian Reservation. Annual Reports to the Commissioner of Indian Affairs, 1885–1910. National Archives and Records Administration, Record Group 75. Washington, D.C.

Swagerty, William R. "Protohistoric Trade and Exchange on the Northern Plains and Rocky Mountain Region." Plains Anthropologist, vol. 33, no. 122, 1988, pp. 393–425.