Anaconda Copper Mining Company Smoke Stack | |
 Northwest side | |
| Location | Anaconda, Montana |
|---|---|
| Nearest city | Butte, Montana |
| Coordinates | 46°6′36.08631″N 112°54′49.51520″W / 46.1100239750°N 112.9137542222°W[1] |
| Built | 1918 |
| Architect | Alphons Custodis Chimney Constr. Co. |
| NRHP reference No. | 87000607 |
| Added to NRHP | April 9, 1987 |
The Anaconda Smelter Stack is the tallest surviving masonry structure in the world, with an overall height of about 585 feet (178.3 m), including a brick chimney 555 feet (169.2 m) tall and the downhill side of a concrete foundation 30 feet (9.1 m) tall.[2][3][A] It is a brick smoke stack or chimney, built in 1918 as part of the Washoe Smelter of the Anaconda Copper Mining Company (ACM) at Anaconda, Montana, in the United States. A terra cotta coating covered the entire brick chimney when new, but by the time the smelter closed in 1981, most had eroded away except for the upper 40%, exposing most of its bricks and reinforcing rods. The inside diameter at the bottom of the brick chimney is 76 feet (23.2 m) while that at the top is about 60 feet (18.3 m). The stack and its viewing area are now the two-part Anaconda Smoke Stack State Park.[4]
- ^ National Geodetic Survey datasheet RX0934 converted from NAD83 to WGS84 via NGS Horizontal Time-Dependent Positioning
- ^ Cite error: The named reference
Kellywas invoked but never defined (see the help page). - ^ "Highest Chimney Built for Smelter at Anaconda, Montana". Engineering News-Record. 83 (17): 764–5. October 23, 1919. Retrieved October 1, 2017. Provides precise dimensions via two drawings plus several rounded dimensions in its text.
- ^ "Anaconda Smoke Stack State Park".
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