The Blackfeet Nation (, ), officially named the Blackfeet Tribe of the Blackfeet Indian Reservation of Montana, is a federally recognized tribe of Siksikaitsitapi people with an Indian reservation in Montana. Tribal members primarily belong to the Piegan Blackfeet (Ampskapi Piikani) band of the larger Blackfoot Confederacy that spans Canada and the United States. The Blackfeet Indian Reservation is located east of Glacier National Park and borders the Canadian province of Alberta. Cut Bank Creek and Birch Creek form part of its eastern and southern borders. The reservation contains 3,000 square miles (7,800 km2), twice the size of the national park and larger than the state of Delaware. It is located in parts of Glacier and Pondera counties. History The Blackfeet settled in the region around Montana beginning in the 17th century. Previously, they resided in an area of the woodlands north and west of the Great Lakes. Pressure exerted by British traders at James Bay in present day Canada on the Algonquin-speaking tribes in the area drove the Blackfeet out onto the Northern Plains. They eventually acquired firearms and horses, and became a formidable example of the classic Plains Indian culture. They were a powerful force, controlling an area that extended from current day Edmonton, Alberta Province, nearly to Yellowstone National Park, and from Glacier Park to the Black Hills of South Dakota. The Badger-Two Medicine area is a significant sacred site for the tribe. In the late 19th century, Blackfeet territory was encroached on by European Americans and Canadians, and various branches of the people were forced to cede lands and ultimately move to smaller Indian reservations in the United States and reserves in Canada. Adjacent to their reservation, established by Treaty of 1896, are two federally controlled areas: the Lewis and Clark National Forest, set up in 1896, which contains the Badger-Two Medicine area, an area of ; and Glacier National Park, both part of the tribal nation's former territory. The Badger-Two Medicine area is sacred to the Blackfeet people. This sacred part of the Rocky Mountain Front was excluded from Blackfeet lands in a Treaty of 1896, but they reserved access, hunting and fishing rights. Since the early 1980s, when the Bureau of Land Management approved drilling rights leases without consultation with the tribe, the Blackfeet have worked to protect this sacred area, where they practiced their traditional religious rituals. The United States federal government suspended