Conservation of Coal in Canada With Notes On the Principal Coal Mines
Conservation of Coal in Canada With Notes On the Principal Coal Mines
Canada Commission of Conservation Committee On M
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Mine ptimp. Alberta Railway and Irrigation Company This company operates the Gait mines at Lethbridge, and at the present time, mining is being carried on in two mines — -No. 3 and No. 6. No. 6 Mine This mine is situated three miles from Lethbridge. A spur, 3 miles in length, connects the mine with the Canadian Pacific ry. At that point. The coal is lignitic in character, and occurs in a fiat or slightly dipping seam, averaging about 4 ft. 4 in. In thickness. The following is an approximate sec...tion taken in one of the rooms : Draw slate 11 in. Clay ' I " Coal 18 " Clay 2 " Coal 30 " Black-j' ck pavement Method of Mining. — The mine is worked from a perpendicular, four-compartment shaft, 20 ft. X 21 ft. And 400 ft. Deep. The elevation of the shaft-collar is about 2936 ft. Above sea-level. The seam is frequently disturbed by faults, and, at such faults, a little gas is occasionally encountered. The system of mining is pillar-and-room. (See sketch, p. 108). Every 2000 feet, four parallel main entries are driven for the main haulage and ventilation roads.
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