The Ecsall Story - The Transition from Pit to Underground
CIM Bulletin, Vol. 67, No. 745, 1974
Barton A. Thomson, Assistant General Manager Peter N'. Blakey, Underground Production Engineer, Jean-Paul Paquette, Underground General Mine Foreman
The Ecsall Story - The Transition from Pit to Underground
Keywords:
The Ecsall Story, Open Pit mining, Underground mining
