Leech Lake is a lake located in north central Minnesota, United States. It is southeast of Bemidji, located mainly within the Leech Lake Indian Reservation, and completely within the Chippewa National Forest. It is used as a reservoir. The lake is the third largest in Minnesota, covering 102,947.83 acres (416.6151 km2) with 195 miles (314 km) of shoreline and has a maximum depth of 156 feet (48 m).