Kennecott Garfield Smelter Stack

40°43′18″N 112°11′53″W / 40.721563°N 112.198118°W / 40.721563; -112.198118

Kennecott Utah Copper LLC’s Garfield Smelter Stack is a 1,215-foot (370 m) high smokestack west of Magna, Utah, alongside Interstate 80 near the Great Salt Lake. It was built to disperse exhaust gases from the Kennecott Utah Copper smelter at Garfield, Utah. It is the 61st-tallest freestanding structure in the world, the 4th-tallest chimney, and the tallest freestanding structure west of the Mississippi River.