A Santa Fe 991 train swings off the 5th crossing of Tehachapi Creek and heads into a deep cut below the Loop.

SD9 No. 3955 leads an SP eastbound as it begins its tortuous climb around the Loop.

The Union Pacific "Brooklyn Trailers" wind their way around the World Famous Tehachapi Loop on the clear summer day. This train is bringing up the rear of a southbound string and soon tr... (more)

Very late in the day, a U33C with an L-shaped windshield leads a heavy manifest up the steep grade toward the Loop.

Southern Pacific SD7 2717 leads a helper set back down the mountain at Walong, California - the famed Tehachapi Loop! - on April 8th, 1973. Built by EMD in July 1953 as SP 5310, the 2717 would be... (more)

SD9E No. 4380 leads an SP light helper around the Loop as it coasts down the hill to help another train.

The rear unit of a light helper breaks into sunlight momentarily before receding into shadow as it heads downhill below the Loop.

An SP PTLAF rounds the Tehachapi Loop not long after sun-up.

Storm clouds brew in the afternoon heat as a Pasco to Barstow train makes the final approach to the Tehachapi Loop at Walong.

A trainload of sugar beets holds the siding at Walong, more popularly known at the Tehachapi Loop, on October 22nd, 1972. This unit train is lead by U33C 8689, a pair of SD39s and a U30C.

Rounding the famed Tehachapi Loop is a four-unit helper set, consisting of three Southern Pacific U30C diesels and one SP SD40. (October 22, 1972)

A four-unit helper set, consisting of a pair of SD45s (one each from Southern Pacific and Cotton Belt), an SP SD40 and an SP U33C, rounds the Tehachapi Loop on October 22, 1972.

All Rights Reserved © Guillermo Sanchez Photo

An SP Tunnel Motor leads a UP unit and others as an eastbound freight exits tunnel 9 and begins climbing the Tehachapi Loop.

A heavy Fresno to West Colton freight approaches the Tehachapi Loop as it grinds upgrade at first light.