Modern Mining Methods at Copper Mountain; Radial Blast Hole Mathematics

CIM Bulletin, 1947

THE mine at Copper Mountain of the Granby Consolidated Mining, Smelting and Power Company was one of the pioneers in the use of blast-hole diamond drilling for ore breakage. This method of ~mining has now been brought to a high degree of perfect10n. The system rin use has• been described in a previously published paper(l) which has become an important part of the literature o the blast-hole drilling method.