Slope mines are another kind of
With slope mines, the
minerals are far enough under
surface mining canít reach it.
With slope mining, the coal or mineral
bed is located very deep and parallel to the ground. It is
called a slope mine because the
shafts are slanted. This kind
of mining is done when there would be problems drilling shafts
straight down. Slope mines are not usually too deep.
The diagram shows the shaft slanting
down to the coal or mineral bed. Conveyors bring
the coal out of the mine using the slope tunnel. Sometimes
there are two shafts like the one that is pictured in our
diagram. When there are two shafts, special Ďcarí devices take the
men in and out of the mine through one shaft. The coal or
mineral is taken out of another slanted shaft.
What is mined this way: