Smelter leveling marks end of an era Author R. G. Ackerman Article Date February 13, 1955 Article Abstract Destruction of Humboldt smelter stack, oldest in Arizona Journal Title Ariz Days & Ways
Mayer's smokeless smokestack Author C. Simpson Article Date March 7, 1975 Article Abstract In 1916 Big Lake Mining Co. built concrete smokestack at Mayer which still stands Journal Title Westward (Prescott Courier)