Bois Forte Indian Reservation in the context of Koochiching County, Minnesota

St. Louis County is a county in the Arrowhead Region of Minnesota. As of the 2020 census, the population was 200,231. Its county seat is Duluth. It is the largest county in Minnesota by land area, and the largest in the United States by total area east of the Mississippi River.St. Louis County is included in the Duluth, MN–Superior, WI Metropolitan Statistical Area.

Major industries include pulpwood production and tourism. Open pit mining of taconite and processing it into high grade iron ore remains an important part of the economy of the Iron Range and is directly tied to shipping in the twin ports of Duluth and Superior. Parts of the federally recognized Bois Forte and Fond du Lac Indian reservations are in the county.

Itasca County (/aɪˈtæskə/ eye-TASS-kə) is a county located in the Iron Range region of the U.S. state of Minnesota. As of the 2020 census, the population was 45,014. Its county seat is Grand Rapids. The county is named after Lake Itasca, which is in turn a shortened version of the Latin words veritas caput, meaning 'truth' and 'head', a reference to the source of the Mississippi River. Portions of the Bois Forte and Leech Lake Indian reservations are in the county.