The main haulage tracks are laid at the bottom of the stope, which thus forms the level.
A stope is that portion of the working assigned to a party of miners, and the block of ground is usually A s /u//, ?l'?//?
Divided into three or four stopes at varying heights above the main level, the lowest being known as the cutting-out stope, the others as the first and second back stopes in ascending order.
In steep pitching beds sufficient excavated material is allowed to remain in the stope for the support of the machines and men, the excess being drawn out from time to time and loaded into cars.
The rest of the mineral is allowed to remain until the stope has so far advanced that its support is no longer needed.
The ore as mined is hand-picked and the barren material allowed to remain in the stope where it falls.