BNSF 4925 leads the Barstow, CA to Pasco, WA manifest out of Bealville.

UP 8194 charges upgrade at Tunnel 2 with an empty "Rock" train in tow.

BNSF 7237 leads a Southbound vehicle train through Sandcut, passing under the aging cantilever signal which dutifully stands guard over the crossovers.

A Northbound Union Pacific stack train rolls through Sandcut on an unusually cloudy May afternoon.

The setting sun creates colorful drama as BNSF 6035 pulls through Sandcut.

The setting sun glints off the flanks of BNSF's Stockton, CA to Barstow, CA manifest train. The train rolls through Sandcut shortly after the conclusion of the solar eclipse of May 20, 2012.

BNSF 5404 drops downgrade between Tunnels 5 and 3 during the peak of a solar eclipse. Tehachapi Pass only saw a partial eclipse, but the lighting conditions were still quite unique.

BNSF 4198 eases out of Bealville and is about to enter Tunnel 2 on Tehachapi Pass.

With sun visors down, the crew of BNSF 5459 shields their eyes from the late afternoon sun as the train glides through Sandcut.

A heavy, Southbound manifest, lead by Warbonnet 4714 climbs upgrade at Tunnel 2 on a nice clear afternoon.

BNSF 4901 drops downgrade through Bealville. The train is about to enter Tunnel 2 on Tehachapi Pass.

Union Pacific 2010, sporting markings to commemorate the 100th Anniversary of the Boy Scouts of America, drifts downgrade through Caliente.

BNSF 5459 crosses the Caliente Creek while negotiating the horseshoe curve at Caliente.

BNSF 4714 slowly climbs into Caliente under a late afternoon sun.

The mix of sunlight and haze encases the signals at Sandcut as the sun sets over the Temblor Range on the West side of the San Joaquin Valley.