Spirit Lake Tribe Spirit Lake Tribe The Spirit Lake Tribe (in Santee Dakota: "Mni Wakan Oyate", formerly known as Devils Lake Sioux) is a federally recognized tribe based on a reservation located in east-central North Dakota on the southern shores of Devils Lake. It is made up of people of the Pabakse ("Iháŋkthuŋwaŋna"), Sisseton ("Sisíthuŋwaŋ") and Wahpeton ("Waȟpéthuŋwaŋ") bands of the Dakota tribe. Established in 1867 in a treaty between Sisseton-Wahpeton Bands and the United States government, the reservation, at , consists of of land area, primarily in Benson and Eddy counties. Smaller areas extend into Ramsey, Wells and Nelson counties. According to
Spirit Lake Tribe treaty with the United States that established a reservation for Dakotas who had not been forcibly relocated to Crow Creek Reservation in what is now called South Dakota. The name "Devils Lake" is a calque of the Dakota phrase "mni wak’áŋ" (literally: spirit water), which is also reflected in the names of the Spirit Lake Tribe and the nearby town of Minnewaukan. The Dakota called the lake "mni wak’áŋ chante", which separately translate as "mni" (water), "wak’áŋ" (literally "pure source" but often translated as "spirit" or "sacred"), and "chante" (heart). European-American settlers misconstrued this name to mean "Bad Spirit Lake",