Question

define rat hole mining

Answer 1

Rat hole mining is a term used in coalmining and is so named because of its name during colonial times, the sistema del rato, and because of the sizes of the holes. ... The mining is done by digging small holes into the ground, much like the holes dug byrats.

Answer 2

Rat hole mining is a mining which is done by digging small holes into the ground.It is a term used in coal mining and is so named because of its name during colonial times, the sistema del rato, and because of the sizes of the holes.