Timothy H. O'Sullivan, 1873, Distant view of Ancient Ruins in lower part of Canon de Chelle [Ariz. Terr.]… Showing their position in the walls and elevation above bed of canon. A member of the Wheeler Expedition is sketching the ruins from the foreground of the photograph, Stereograph, National Archives and Records Administration, LL/6610
Timothy H. O'Sullivan 1873 Distant view of Ancient Ruins in lower part of Canon de Chelle [Ariz. Terr.]… Showing their position in the walls and elevation above bed of canon. A member of the Wheeler Expedition is sketching the ruins from the foreground of the photograph
