DescriptionHeralded as the tallest freestanding masonry structure in the world when it was completed in May 1919, the Washoe Stack measures 585 feet in height and 60 feet across at the top. The towering brick chimney is all that remains of the massive Washoe Reduction Works, constructed in 1918 in a record 144 days. At the height of production during World War II, the smelter produced more than 25 million pounds of copper per month and employed about 2,500 men. After the smelter’s closure in 1980, citizens of Anaconda organized to “Save the Stack,” and in 1986 it was designated a state park. Environmental cleanup continues on the site. A viewing stand alongside the highway provides information about this engineering wonder. Other Name(s)Anaconda Smelter Stack State ParkWashoe StackWashoe Reduction WorksContributing InstitutionMontana Historical Society Library and ArchivesGeolocation[1] Elevation5759 ft. CountyDeer Lodge County
