LONGWALL MINING Overview. In the method of secondary extraction known as longwall mining a relatively long mining face (typically in the range 100 to 300m but may be longer) is created by driving a roadway at right angles between two roadways that form the sides of the longwall block, with one rib of this new roadway forming the longwall face.
Method used depends greatly on the mineral's location Mining allows for the extraction of minerals from the Earth. There are many materials that can be mined. The location of the mineral and its proximity to the surface typically determines the type of mining that is used.