where the writers are
Smoke, Whistle & Steam: SP 2472 on the Niles Canyon Railway
Related Book: 
HEROES ARISE

Golden Gate Railroad Museum's SP 2472 (operated by the Pacific Locomotive Association) on the Niles Canyon Railway. Video taken on March 28, 2009, by David I. Hill. If you haven't already guessed, Laurel Anne Hill and her husband love trains.