UNDERGROUND COPPER PROJECT

Roughstock was contracted to complete a Feasibility Study (FS) for a major Copper discovery in North-Central Alaska. The study included primary and secondary development of underground mine design, stope design, and infrastructure design for a planned 5,000 ton/day mine. Design work and Life-of-Mine scheduling was completed in Deswik Software. Primary development included a decline from surface, tie into existing shaft, and multiple ramp systems to the different ore-bodies. Mining methods included transverse long-hole stopes & cut and fill stopes.