Echo Bay Mines Limited was a Canadian[1] company which was organized in 1964 by Northwest Explorers Limited to develop a silver deposit at Great Bear Lake, Northwest Territories, Canada, which had been staked in 1930 by The Consolidated Mining and Smelting Company[2] (now called Teck Resources).
The company leased the old Port Radium settlement from Eldorado Mining and Refining Limited and used the old camp and mill to recover silver and copper values from what became known as the Echo Bay Mine.
The company then reopened the old Eldorado Mine workings and produced more silver and copper until 1981, when low silver prices caused the mine to close permanently.
In 1986 the company purchased Sunnyside Gold Mine in Silverton, Colorado, and operated it for five years before it closed because of low gold prices.
[6] The company became a subsidiary of Kinross Gold Corporation in 2003 and has been delisted from the stock exchange.