Steven T. Mitchell is a native and lifelong resident of the Black Hills of South Dakota. He is a graduate of the South Dakota School of Mines and Technology with BS and MS degrees ...ver maisSteven T. Mitchell is a native and lifelong resident of the Black Hills of South Dakota. He is a graduate of the South Dakota School of Mines and Technology with BS and MS degrees in mining engineering. Mitchell’s mining career was with Homestake Mining Company at the Homestake Mine in Lead, South Dakota, where he held various engineering and management positions. He and his wife, Cindy, have two grown children, Brian and Sheryl.ver menos