Knob Lake

an iron ore deposit in Canada, in the central part of the Labrador Peninsula, on the northwestern shore of Knob Lake (Quebec), within the Labrador Iron Ore Belt. Industrial reserves of ore (more than 50 percent Fe) are estimated at 0.5 billion tons; exploitation began in 1954. The ore is shipped out through the port of Sept-Îles on the Gulf of St. Lawrence, with which the mining settlement of Schefferville is linked by rail.