| William Henry Jackson Marshall Pass, west 1882-1897 (ca) Lantern slide, glass 8.3 x 10 cm DeGolyer Library, South Methodist University - SMU Lantern slides of Mexico, California and Colorado, File: ag1984_0301_1083_opt.jpg LL/43829 After his employment as official photographer of the USGS ended in 1878, W.H. Jackson opened a commercial studio in Denver. His commissions included advertising photographs for railroad companies, such as the Denver and Rio Grande. This photograph shows a Denver and Rio Grande train passing through the Marshall Pass.
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