Harold Clark, nephew of Ed Clark, presents a picture of Ed at the dedication of Clark High School in Las Vegas, Nevada.

People in attention at the Clark County School District dedication ceremony in Las Vegas, Nevada. C. W. Woodbury is seated at left.

Murl Emery, left, and Vincent Keele, right, at Murl Emery's stamp mill in Eldorado Canyon, where gold was milled over a century prior.

Murl Emery, left, standing beside his stamp mill with an unidentified individual, right, in Eldorado Canyon. The mill was used to mill gold over a century prior.

Description provided with image: "In the fall of 1924 representatives of the Chambers of Commerce of Panaca, Pioche, and Caliente met with Governor James G. Scrugham to request the establishment of a state park at Cathedral Gorge. L-R: Elbert Edwards, Nephi Edwards, E. C. D. Marriage, Willard Smith, William H. Edwards, A. L. Scott, Herman Frudenthal, Governor Scrugham, Earl Grotto, Arthur V. Lee, George L. Edwards, Col. Thomas Miller, and Ernest T. Gentry. (Photo by Dr. Mark R. Harrington). Boulder Dam."

A downstream view of Hoover Dam with the transmission lines visible in the foreground.

A downstream view of Hoover Dam with outlet works open and visible.