Triangulation Station, near the mouth of the Grand Canon, Colorado River. Photographer: T. H. O'Sullivan Photographer's number: 13 Photographer's series: Expedition of 1871. :13

Courtesy of UC Berkeley, Bancroft Library

http://www.oac.cdlib.org/ark:/13030/tf8580100q/?order=1

Title:

Triangulation Station, near the mouth of the Grand Canon, Colorado River. -- Photographer: T. H. O'Sullivan -- Photographer's number: 13 -- Photographer's series: Expedition of 1871.

Contributing Institution:

UC Berkeley, Bancroft Library