raise

Mining is the process of extracting valuable minerals or other geological materials from the Earth. This can be done through surface mining, where the surface is removed to access ore, or underground mining, which is used for deposits far below the surface.12

Underground mining is more costly per ton than surface mining due to smaller equipment and limited access, but it focuses solely on extracting ore, unlike surface mining which often involves removing waste material. The choice of mining method depends on factors like the ore body's size, shape, orientation, and the strength of the surrounding rock.134

A "raise" in mining is a vertical or inclined passageway connecting different working areas at higher levels within a mine. A "raiseman" is a miner who works in such a raise.56