From the Morgan Sweeney Photograph Collection (PH-00228). Arizona wing of the Hoover Dam powerhouse. Showing is the removal of concrete plug from A-9 draft tube opening.
Illustration on a postcard of giant tunnels creating diversions for the Colorado River during the construction of Hoover Dam. The caption reads: "Diverting the Colorado River through giant tunnels."
Album contains Wieking family photos, photos of Hoover Dam construction, Black Canyon, ferries on the Colorado River, ruins of Fort Callville, Englers Camp, Las Vegas Ranch, Mt. Charleston, deserts in Nevada and Arizona, Hoover Dam laboratory workers, the first train in Railroad Pass, and snow in Las Vegas. Also included are one color postcard titled "The Grand Canyon Bridge, Arizona," and prints of two poems, "Mornin' On The Desert" and "Nevada" (authors unknown). A paper finding aid is available in the album box.