Basement room of Boulder Dam Museum, showing a stairway and basement door in the southwest corner of the room.

Basement museum room, looking north, showing north corner of room. Boxes of materials are seen near the entrance doorway as light shines in from the windows.

Wilbur Clark facing camera at round table, center at a formal dinner at the Astor Hotel, New York City, 1958. (credit: Bill Mark, Park Sheraton Hotel, NYC).

'Johnson's California, also Utah, Nevada, Colorado, New Mexico, and Arizona, published by A.J. Johnson, New York.' 'Entered according to Act of Congress in the Year 1864, by A.J. Johnson in the Clerks Office of the District Court of the United States for the Southern District of New York.' Atlas page numbers in upper margin: 66-67. Relief shown by hachures. Prime meridians: Greenwich and Washington, D.C. Shows proposed railroads, locations of Indian tribes, natural features, counties, mines, mail routes, trails and routes of exploring expeditions. On verso: History and statistics of Mexico and Central America and statistics of national finances and the Post Office of the United States, 1860. Scale [ca. 1:3,484,800. 1 in. to ca. 55 miles] (W 123°--W 103°/N 42°--N 32°)