High Temp: 94Meet the city of Anaconda's answer to clean air, the Anaconda Stack. The Anaconda Copper Company built this 585 foot brick structure in 1919 for its smelter. The stack is one of the world's largest free standing brick structures and its diameter measures 60 feet at the top. The smelter was finally shut down in 1980.
The above photo is a scale model of the diameter of the top of the stack. The entire Washington Monument could be concealed within this monlith.