The Tunnel Motors were designed to keep units from overheating in tunnels and snowsheds like those on Donner Pass. The tunnel motor design was applied to 245 SP-SSW SD45T-2s and 239 SP-SSW and... (more)

The hills in the Tehachapi Mountains are a golden brown as a Southern Pacific freight rounds the horseshoe curve at Caliente on July 31, 1982. A quartet of SD40T-2 diesels, led by SP 8360, is pro... (more)

SP 8360 has just come down from Cape Horn and crossed Long Ravine Trestle and is seen on the fill heading toward Colfax.

The Oil Cans roar upgrade into Caliente on a hot August afternoon in 1988.