 These tracks encouraged prospecting, and several mines were set up including coal near Barn Bluff, copper in Pelion Plains, Lake Windemere and Commonwealth Creek, tin in Mount Inglis, and tungsten in the Forth Valley.Lake Windemere and Old Pelion huts were established during this mining effort.Trappers worked in the area from the 1860s until the collapse of the fur trade in the 1950s, although hunting in the park was declared illegal after 1927.