Alfred Hart 1865-1869 Blasting at Chalk Bluffs above Alta. Cut 60 feet deep [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-1s00478 (digital file from original photo, front) LC-DIG-stereo-2s00478 (digital file from original photo, back)
