UP 5450 (ES44AC) leads the Grand Junction to Denver train through Tabernash, Colorado as it runs east on the Moffat Tunnel Sub.

UP 5450 (ES44AC) leads a freight past the Amtrak's Winter Park Express Ski Train as it sits on the siding in Fraser, Colorado.

UP 5450 (ES44AC) leads the Grand Junction to Denver train through Tabernash, Colorado.

UP 5450 & NS 4436 westbound with a manifest.

Union Pacific C45ACCTE #5450 leads a manifest through Marysville at Binney Junction.

On a sunny November afternoon, Union Pacific 5450 leads a southbound manifest under an iconic Southern Pacific cantilever at the north end of the Central Valley Siding. Only four cantilevers remai... (more)

UP 5450 drops downgrade around the Tehachapi Loop.

Three of UP's "famous" 5400 series ES44AC GEVOs tackle the 2.2 percent grade at Mercel. Fallowing the tracks that curve left and right along the cliff side edges of the vast rolling his of Tehacha... (more)

Muscling a manifest out of Eugene Yard are these helpers eager to battle the upcoming mountain grade.

UP 5450 leads a mixed freight up the Palmdale cutoff as it approaches Silverwood.

After a few minutes of my arrival, the MRVSJ showed up with UP 5450 East leading 5 more units with the last glimpse of sunlight reflecting off the road grime on the dirty GEVO.

A northbound manifest rolls by slowly as it struggles to climb the pass.

Cresting the Cajon Pass on the UP Palmdale Cut-off this norhtbound passes the Cajon Forest! It may not be big, but it sure is pretty!

UP5450+UP4956+UP3995+UP5368+UP4908+UP4572 head North through Woodford with a manifest heading over the Tehachapi Mountains

UP 5450 leads a westbound stack train out of the Spadra siding on a clear November morning.