Alfred Hart 1865-1869 Summit Valley, altitude 6,960 feet. Emigrant Mt. and R.R. pass in the distance [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-1s00503 (digital file from original photo, front) LC-DIG-stereo-2s00503 (digital file from original photo, back)
