High Quality Content by WIKIPEDIA articles! Brule Lake is a lake in Cook County, Minnesota. It is situated between two long sills in the Superior Upland, causing the lake to be eight times longer east and west than it is north and south. Out of the opposite ends flow the Temperance River and the South Brule, a tributary of the Brule River. Brule Lake was logged heavily in the early 1900s, and the region around it was consumed in 1929 by a logging-related forest fire which bears Brule Lake`s name. Now it is part of the protected Boundary Waters Canoe Area, a federal wilderness area for which Brule Lake serves as an entrance point.