Producing PGMs Since 1986 Feasibility and baseline studies for the Stillwater Mine were undertaken after the palladium rich J-M Reef within the Stillwater Complex was identified in the 1970’s. By the mid 1980’s an Environmental Impact Statement and a Hard Rock Mine Implact Plan were completed. Initial Construction of the Stillwater Mine was completed by 1986 and underground mining commenced. A 1,950 vertical shaft was constructed from 1994 to 1997. Since 1998 the Stillwater Mine has been producing over 400,000 ounces of palladium and platinum per year. The Stillwater Mine • Accesses the eastern portion of the J-M Reef, a segment more than 6 miles long. • Elevations of 2,300 to 7,200 feet above sea level • J-M Reef is accessed by a 1.950-foot vertical shaft, and by a system of horizontal adits    (nearly horizontal entrances) and drifts (passageways between tunnels)
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