Power Plant

The Cordova Mine has its own Hydro, Pneumatic and Electric power development of 1,200 horse power, located at Deer Lake, three miles from Cordova. This development is made by two concrete dams at the foot of Deer Lake, forming a reservoir about one-half mile wide by three miles long, the supply of water coming from a chain of lakes and rivers, extending about sixty miles north, and these upper lakes are controlled by three additional dams.

The water from the Deer Lake dam is conveyed through a six-foot flume, a distance of 1,550 feet, giving a head of 74 feet, at the power house, where it drives two turbines of 800 and 400 horse power, respectively.

The 800 horse power turbine drives by means of thirty endless cotton ropes, a large two-stage air compressor, having a capacity of 5,000 cubic feet of free air per minute.

The air is conveyed through three miles of twelve-inch steel pipe to the mine at one hundred pounds pressure per square inch.

The 400 horse power turbine is direct connected to a 250 K.W. generator and the electric current, 2,200 volts, is conveyed over three aluminum cables a distance of three miles to the transformer station at the Mine, where it is stepped down to 550 volts for driving motors and to 110 volts for lighting.

It will thus be seen that Cordova Mine has ample power, and, when it is added that cost of running this plant is less than $5,000 per annum, it will be seen that this is exceptionally cheap power, also that present power plant will furnish ample power even up to the eventual contemplated capacity of 5,000 tons per day.

The mine is well equipped and has ample facilities for doing anything connected with the upkeep of the plant.