Despite its long wheelbase, the big Centennial takes the sharp curve into Tunnel 2 with ease as it powers the Wimmer Engineering special across the Tehachapi mountains.

Under gloomy skies in the Tehachapi mountains, the Wimmer special approaches a work site at Ilmon on the UP's Mojave Sub.

Passing Slater on the UP's Fresno Sub, the Wimmer Engineering special nears Bakersfield where the train will change crews before heading into the Tehachapi mountains.

Handling a Bill Wimmer Engineering special, UP 6936 has the inspection train moving along at track speed as it passes the south switch Delfar on the UP's Fresno Sub.

UP 6936 leads a westbound business train out of rock tunnel 25 at Rich Bar, deep in the heart of the Feather River Canyon.

Exiting Tunnel 25, the 6936 and its train approach Rich Bar in the Feather River Canyon.

The sole operable Centennial leads a passenger special across the historic Keddie trestle.

11 cars behind the Centennial caught rolling at track speed between Mojave and Palmdale CA.

The Union Pacific titans, Big Boy 4014 and DD40X 6915, are on permanent display in Pomona. They can be seen any day during the LA County Fair, or the second weekend of the month when the local So... (more)

The famed Centennial site idle in the Roseville Yard.

Sitting on display next to UP 844. Behind 6936, though hard to see, are UP 1988 and UP 1982.

FRRS Dunsmuir Days Special on it's 2nd day trip Dunsmuir seen here passing over the famous Redding Trestle at sunset

While Kevin Vahey was below me, I shot 6936 and the skyline buildings from the CTA platform, getting some strange stares from Green Line Passengers