Slope mining
Slope mining is a method of accessing valuable geological material, such as coal or ore. A sloping access shaft travels downwards towards the desired material.
Slope mining is a method of accessing valuable geological material, such as coal or ore. A sloping access shaft travels downwards towards the desired material.
Slope mining is a method of accessing valuable geological material, such as coal or ore. A sloping access shaft travels downwards towards the desired material.
Source: Wikipedia "Slope mining" · CC BY-SA 4.0
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