The Rocky Boy's Indian Reservation is an Indian reservation

Indian reservation

An American Indian reservation is an area of land managed by a Native American tribe under the United States Department of the Interior's Bureau of Indian Affairs...

 of the Chippewa Cree

Chippewa Cree

The Chippewa Cree Tribe is a mixed group of Native Americans in Montana, among the last to come into the state. They are descended from Cree that had come south from Canada, and from Chippewa that had moved west from the Turtle Mountains in North Dakota....

 Tribe located in the U.S. state

U.S. state

A U.S. state is any one of the 50 federated states of the United States of America that share sovereignty with the federal government. Because of this shared sovereignty, an American is a citizen both of the federal entity and of his or her state of domicile. Four states use the official title of...

 of Montana

Montana

Montana is a state in the Western United States. The western third of Montana contains numerous mountain ranges. Smaller, "island ranges" are found in the central third of the state, for a total of 77 named ranges of the Rocky Mountains. This geographical fact is reflected in the state's name,...

. The smallest reservation in the state, it was established by Executive Order on September 7, 1916. The Chippewa Cree Tribe (CCT, governing body) of the Rocky Boy's Indian Reservation was organized in accordance with the Indian Reorganization Act of 1934 (34 Stat. P. 984) as amended by the Act of June 15, 1935.