Amtrak's eastbound Southwest Chief splits the Santa Fe semaphore signals at Wagon Mound on the afternoon of June 7.

Late in the day, Amtrak No. 4 slows at Wagon Mound to run through the siding. Sitting on the main behind the photographer is a BNSF Z train.

Westbound Southwest Chief passing through Wagon Mound on a windy cold morning.

With winds howling across the high county of BNSF's Raton Subdivision, a pair of semaphore signals dating back to the early 1900s wait for the faithful passing of Amtrak's Southwest Chief. The eas... (more)

Amtrak's westbound Southwest Chief races through semaphore intermediates along Interstate 25 just outside of Wagon Mound, New Mexico on July 20, 2015.

It's the beginning of monsoon season in New Mexico on July 20, 2015 as Amtrak train No. 4, the Southwest Chief rolls along through the intermediate semaphore signals outside of Wagon Mound on BNSF... (more)

Amtrak's eastbound Southwest Chief hustles through the intermediate semaphores at MP 722.1 between Wagon Mound and Levy.

Amtrak's Southwest Chief hustles past the famous blades near Wagon Mound NM under stormy skies in September 2001.

A BNSF Officers Special knocks down the clear signal at the MP 722.1 double set of semaphores east of Wagon Mound, NM on the cloudy afternoon of 7/16/13.

The Southwest Chief whips through the semaphores at the east end of Wagon Mound.

On an absolute cloud-free January afternoon in the desert Southwest, The Santa Fe intermediate semaphores signals at Wagon Mound bask in the afternoon sun, silhouetted against a vibrant blue sky. ... (more)

As daylight fades away on Santa Fe's Raton Pass, both Amtrak Trains No. 3 and 4 have completed their daily journey across Raton Pass leaving behind empty rails and a cold and abandoned New Mexico ... (more)

Catching the late evening sun near Wagon Mound, Amtrak's eastbound Southwest Chief splits the veteran Santa Fe semaphore signals along BNSF's Raton Subdivision. This is the last stretch of ... (more)

Amtrak's westbound Southwest Chief train #3 splits the classic semaphore blades at the east end of the siding at Wagon Mound, New Mexico enroute from Chicago to Los Angeles. This segment of... (more)

This is the old Santa Fe line over Raton Pass. The line has not been used for freight since 2004. Amtrak leases the line and runs one passenger train a day in each direction. Semaphores are in op... (more)