Four C44-9Ws bring the Z-WSPSTO around the horseshoe curve and down through Caliente.

BNSF 4178 South, with its spine cars loaded with UPS and other high priority trailers, is working up the grade between Caliente and Bealville.

A BNSF z-train rolls downgrade through the green hills surrounding Caliente.

BNSF 4774 South clings to the side of the Caliente foothills as it rounds the turn approaching Tunnel 1.

BNSF 4747 South struggles up through Caliente with its train loaded with empty trailers bound for Los Angeles.

Tejon Ranch provides the scenery as this BNSF z-train rolls through the ranchland near Caliente.

A total of nine engines (4+3+2) gingerly bring a loaded BNSF grain train downgrade through Caliente as it makes a rolling meet with a southbound baretable train. more)

The BNSF 4742 South tackles the grade approaching Tunnel #2, as the sun begins to set on the Tehachapi Mountains.

BNSF 5137 brings its z-train around the corner, just out of Tunnel 1, as it descends toward Caliente.

BNSF 5192 South splits the intermediate signals as it works upgrade between Tunnel 1 and 2 with its Barstow bound manifest.

BNSF 4390 is in control of its manifest train as it slowly drops down through Caliente. The two DPUs can be seen in the distance on the rear end, about to enter the horseshoe curve.

Three C44-9Ws have this empty unit grain train stretched around the horseshoe curve at Caliente as they head for Tunnel #1.

BNSF 4923 leads its train loaded with wind generator assemblies up the Caliente Creek canyon with two C44-9Ws on the head end and two DPU on the rear.

UP 7774 North is on yellow blocks following a BNSF Z-train as it negotiates the horseshoe curve at Caliente.

Two Z-trains meet at Caliente as the BNSF 714 South prepares to get back underway after the Z-WSPSTO gets in the clear.