The mine shut down in 1965 due to poor economic climate, low demand for lump ore due to the preference for iron ore pellets and high costs. After the mine closed down, the area became a main source of gravel and fill for the town of Atikokan. The Atikokan Airport was built on the flats in 1975. The area that the pits were located was renamed Charleson Recreation Area and is used for dirt bikes, motorcross, Sports Days, mud flings, snow machines, horse back riding, hiking and mountain biking. References See also Cyrus Eaton Atikokan Centennial Museum contains artifacts, archives and an exhibit of the mining history of Steep Rock Lake. Lakes of Rainy River District