The Anaconda Smelter Stack is a radial brick smoke stack, once part of the Anaconda Smelter at Anaconda, Montana in the United States. The stack rests on a concrete foundation and measures585' 1 1/2" tall, the stack has an outside diameter of 86', inside diameter of 75' 4", with the walls measuring 5' 4" thick at the base. Inside diameter at the top is 60'. 20,491 sacks of cement were used in building the 5000 cubic foot concrete base, with the mortar for bricklaying requiring 42,354 sacks. 2,466,392 various sized large brick-the equivalent of 6,672,214 common house brick-are in the stack. The stack weighs 23,810 tons. Smoke went up the stack for the first time May 5th, 1919.
Construction of the stack was completed on May 5, 1919. The Stack was built by the Alphons Custodis Chimney Construction Company of New York. At the time it was built, it was the tallest masonry structure of any kind in the world and it remains the world's tallest and possibly largest free standing masonry structure. An interesting note is that the Washington Monument would easily fit inside. It is commonly referred to as 'The Stack' and is a well known landmark in western Montana. #Anaconda #Chimney #Masonry #Smelter #Stack