Monolith, near the top of Tehachapi Pass, lies under a thick layer of snow and ice as an eastbound powered by seven units heads for Barstow.
With the steep, barren flanks of the Tehachapis in the background, 815 West is about to top the grade at Monolith at sunset.
The Monolith Cement plant looms over a southbound UP stack at MP 366.5 on UP's Mojave Sub. Canon EOS 10D, 350@f8.0 (ISO 100), ~220mm