Alfred Hart 1865-1869 From Tunnel No. 10, looking west. Building wall across the ravine [Central Pacific Railroad, California. Scenes in the Sierra Nevada Mountains. No. 255]
Stereoview Library of Congress, Prints and Photographs Division Reproduction Number: LC-DIG-stereo-1s00580 (digital file from original photo, front) LC-DIG-stereo-2s00580 (digital file from original photo, back) LC-USZ62-56966 (b&w film copy neg. of full stereo)
