Gold ore to the value of nearly £60,000 is mined every week in Canada’s largest gold mine. Hollinger Mine, a remarkable example of engineering and one of the world’s greatest producers of gold, rivals the famous mines of the Rand, in South Africa. This chapter, by Harold Shepstone, describes the Hollinger Gold Mine, Ontario, a great Canadian enterprise which rivals the famous gold mines of South Africa. Last year  this mine produced gold to the value of more than £3,000,000, about 5,000 tons of ore being brought to the surface every day. So rich is the mine that experts have declared that gold probably continues to a depth beyond human reach. Yet it was less than thirty years ago that two prospectors staked their claim to this Canadian El Dorado. The article is concluded in part 47.