A long, heavy Union Pacific freight powered by two SD90MAC-H 6000 horsepower locomotives grinds past the south (east) switch of Walong on California’s Tehachapi Pass on March 28, 2001.

Two Union Pacific EMD SD90MAC-H locomotives pull an eastbound manifest freight up Tehachapi Pass at Cable, California, on a sunny March 8, 2001.

UP 8521, 6292, 6474, & 1498 westbound with a manifest.

Warren Curve
Two Union Pacific SD90MACs (true 6000 h.p. SD90MAC-H locomotives), Nos. 8521 and 8513, pull a long freight eastbound through Warren, California, on March 28, 2001.

A long Union Pacific freight pulled by two SD90MAC-H 6000 horsepower locomotives ascend Tehachapi Loop, California, on March 28, 2001.

I G2LB-05 UP 8521, UP 8534, UP 8537, UP 8535, & UPY 2714 with 115 Loads, 7450 Tons, 7597 Feet. All 5 are brand new on their maiden run. Delays out of Daggett force this chase into the rapidly sett... (more)