Alfred Hart 1865-1869 Prospect Hill Cut. Upper slope, 170 feet [Central Pacific Railroad, California. Scenes in the Sierra Nevada Mountains. No. 000]
Stereoview Library of Congress, Prints and Photographs Division Reproduction Number: LC-DIG-stereo-1s00486 (digital file from original photo, front) LC-DIG-stereo-2s00486 (digital file from original photo, back) LC-USZ62-50455 (b&w film copy neg. of half stereo)
