Welcome to Blaine County, Montana
Blaine County is located in north-central Montana, and has a land area of about 2,730,880 acres or 4,267 square miles. Blaine County is bounded by Hill County and Chouteau County on the west, Phillips County on the east, Fergus County on the south and the province of Saskatchewan, Canada on the North.
Chinook is the county seat and incorporated towns include Chinook and Harlem. The Missouri River forms the southern boundary. The Fort Belknap Indian Reservation consisting of the Gros Ventre and Assiniboine Tribes, occupies an area within the southwestern portion of Blaine County.
Elevations in Blaine County, Montana range from about 2,300 feet above mean sea level along the Milk River to about 6,000 feet in the Little Rocky Mountains in the extreme southeastern portion. The Bears Paw Mountains make up the southwestern portion of the county. Extending from the east to the west, the Milk River runs through the north-central section.