Technical data and correspondence relating to several engineering projects of Johnson, Underkofler and Briggs of Boise, Idaho, including mechanical and electrical construction primarily in southwest Idaho.
Switch gear of the first electric hoist used at the Bunker Hill Mine operated by the Bunker Hill and Sullivan Mining and Concentrating Company near Kellogg, Idaho. The hoist serviced the No. 1 shaft. Photo circa 1917.
Water resources development-Idaho-History-Sources. --Electric power-Idaho-History-Sources. --Elections-Idaho-1978. --Idaho-Politics and government-History-Sources.
Membership lists, financial records, newspaper clippings, and other records of the Water/Power Initiative Committee, which gathered petitions for a proposed "Hydropower Protection and Water Conservation Act" in Idaho.