This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer.
Replaced existing image with a digitally retouched scan of the original photo archived by the National Park Service https://npgallery.nps.gov/AssetDetail/a3adeb72-294b-4139-b0a2-e4759055c82e
Uploaded a work by The Southern Pacific Railroad from Johnston, Hank (1966). They Felled the Redwoods: A Saga of Flumes and Rails in the High Sierra. Stauffer Publishing. ISBN 0-87046-003-X with UploadWizard