THE IRON ORE SITUATION IN. ONTARIO
The iron ore question in this country has been widely discussed for many years, but only recently has its real significance becoming generally understood. The exhaustion of the old Helen mine, in 1918, marked the last phase of hematite production in Ontario, and with the closing of the Magpie mine in 1921 , Canada ceased to be a producer of iron ore. For the past three years every ton of ore used in Canadian blast furnaces has been imported.
blast furnaces, hematite, Iron Ore Committee, magnetite, siderite, Deposits, Iron, iron ore, Iron ores, Ore, Ores