Tunneling and underground mining drills 2011 United States, SLC, Utah
Tunneling and underground mining drills 2020 United States, SLC, Utah
Tunneling and underground mining drills 2005 United States, SLC, Utah
Tunneling and underground mining drills 2010 United States, SLC, Utah
Tunneling and underground mining drills United States, SLC, Utah
Tunneling and underground mining drills 1994 4,078 h United States, SLC, Utah
Tunneling and underground mining drills 1991 United States, SLC, Utah
Tunneling and underground mining drills 1999 6,500 h United States, SLC, Utah
Tunneling and underground mining drills 2015 United States, SLC, Utah
Tunneling and underground mining drills 2002 United States, Weldon Spring, Missouri
Tunneling and underground mining drills 2016 United States, Fowlerville, Michigan