File:Trestle CPRR.jpg

Description: Central Pacific Railroad trestle. Photographer: Carleton E. Watkins. Date: negative, 1868 - 1870; print, about 1880. Source: "File:Trestle CPRR.jpg" in "Central Pacific Railroad" in Wikipedia: the Free Encyclopedia at http://en.wikipedia.org/wiki/Central_Pacific_Railroad (accessed 10 July 2009) citing Getty Museum Gift in memory of Leona Naef Merrill and in honor of her sister, Gladys Porterfield, URL: http://www.getty.edu/art/gettyguide/artObjectDetails?artobj=107728&handle=li  Permission: Public domain. This image is in the public domain because its copyright has expired. This applies to the United States, Canada, the European Union and those countries with a copyright term of  life of the author plus 70 years.