Excelsior Mining is developing its multi-billion pound in-situ Gunnison Copper Project in Southern Arizona. The in-situ mining method has the potential to have lower operating costs and lower capital costs compared to coventional copper mines. Additionally, the in-situ copper recovery mining process is one of the most environmentally friendly ways to mine. This video explains the process. Excelsior Mining trades on the TSX-Venture under the symbol MIN.