Union Pacific's Big Boy, the celebrated 4-8-8-4 number 4014, rolls south out of Butler at a steady 25 MPH. Train overnighted in Butler while barnstorming on UP's "Great Race Across the Midwest."
This former Chicago & North Western bridge crosses Underwood Creek, Watertown Plank Road, and (obscured by a bunch of smoke) Canadian Pacific's former Milwaukee Road mainline.
Additional geeky info: train symbol is PBUWG2 26.
