The "Phelps Dodge Headquarters Building" was built in 1896 and is located in 5 Copper Queen Plaza in Bisbee, Az. The building was the headquarters of the Phelps Dodge Mining Co. from 1896 to 1961. It now houses the Bisbee Mining & Historical Museum. It was the first museum in the southwest to be distinguished as a Smithsonian Affiliate Museum. The building was listed in the National Register of Historic Places on June 3, 1971, reference #71000109.