WORLD'S LARGEST MAN-MADE HOLE

The Bingham Canyon Mine, more commonly known as Kennecott Copper Mine, is an open-pit mining operation extracting a large porphyry copper-deposit southwest of Salt Lake City, Utah. Kennecott’s Bingham Canyon Mine is the largest artificially made excavation in the world and is visible to the naked eye from an orbiting space shuttle. The mine has been in production since 1906, and has resulted in the creation of a pit over 0.6 miles deep, 2.5 miles wide, and covering 1,900 acres (3.0 square miles). It was designated a National Historic Landmark in 1966 under the name Bingham Canyon Open Pit Copper Mine.

KENNECOTT'S BINGHAM CANYON MINE IN UTAH