The Trout Lake Concentrator Coleraine Mn Industrial
Sep 03, 2015 Iron Mining at Coleraine, Minnesota, in The Engineering and Mining Journal, Vol. 88, No. 16, pp. 770 The Trout Lake Concentrator was one of many beneficiation plants that soon dotted the landscape of the Western Mesabi, but unlike most of these other processing plants, the Trout Lake Concentrator operated independent of an individual mine.