Lower Level Operations in a Thick Steeply Pitching Seam
IN the past, the Cadomin Coal Company has opened four mines, all in the same coal seam or its folds. Three of these were opened from river level by horizontal entries or rock tunnels, and the fourth, the present working mine, by vertical shafts. This paper deals largely with some operating phases of this fourth mine, with which the writer has been associated.
Cadomin Coal Company, Cadomin seam, coal seam, mine, sandstone, Coal, Mine, Mines, Operation, pillar, Pillars, Rock, Rocks, Shafts