High Grade Iron Ore is being developed on a large scale at Steep Rock Lake, 136 miles west of Port Arthur, Ont

Original Toronto Star caption: High Grade Iron Ore is being developed on a large scale at Steep Rock Lake, 136 miles west of Port Arthur, Ont., and 100 miles north of the world's greatest iron range, the Mesabi in Minnesota. The are body is estimated at 100,000,000 tons down to the 1,000-foot level and other are bodies in a wide area are indicated. Above: A magnetometer survey of Steep Rock showing W. H. White at the machine and Dr. A. A. Brant taking notes. Dr. Brant is at the head of a geophysical party from the University of Toronto