ACS recently completed a Class III cultural resource survey and historic building survey at the Iron King Mine and Humboldt Smelter, located just outside of Humboldt, Arizona. The survey was conducted in compliance with Section 106 of the National Historic Preservation Act on behalf of the Environmental Protection Agency (EPA) for their Remedial Investigation/Feasibility . . . → Read More: Class III Cultural Resources Survey & Historic Research at Iron King Mine & Humboldt Smelter, EPA, Humboldt, Arizona


