Union Pacific EMD SD40-2 No. 3315 and EMD SD60M No. 2313 sit outside on the west side of UP’s large locomotive shop at Bailey Yard in North Platte, Nebraska, on the afternoon of May 4, 2011.

Inside the Diesel House at Union Pacific’s former Rio Grande Burnham Shops at Denver, Colorado, two machinists work on a cylinder of the 7FDL16 prime mover of UP GE AC4400CW No. 7334 on December... (more)

A machinist checks the progress of the axle one wheel of a GE ES44AC that he is carefully cutting with a lathe on the wheel track inside the Diesel Shop at Union Pacific’s Bailey Yard at North P... (more)

Locomotives really are washed once in a while
A Union Pacific EMD SD9043MAC gets a thorough cleaning before heading into the main shop for an overhaul on Track 2 at the east side buildi... (more)

Union Pacific EMD SD9043MAC No. 8046 is in for repair at the east side building at the large Diesel Shop at the railroad’s Bailey Yard in North Platte, Nebraska, on May 4, 2011.

A Union Pacific machinist works on the prime mover of UP GE C40-8W No. 9481 inside the Diesel Shop at the railroad’s Bailey Yard in North Platte, Nebraska, on May 4, 2011.

Several Union Pacific locomotives line the tracks of UP’s large North Platte Diesel Shop at Bailey Yard in North Platte, Nebraska, on May 4, 2011.

A group of Union Pacific EMD and GE locomotives get repairs and inspections done inside the Diesel House at UP’s Burnham Shops in Denver, Colorado, on December 21, 2015. Unfortunately, UP closed... (more)

Union Pacific EMD SD40N No. 1826 has some repair work done on the just above the big HTC truck in the Diesel Shop at the railroad’s Burnham Shops in Denver, Colorado, on December 17, 2015.

A new air compressor is installed into Union Pacific GE AC4400CW No. 6891 inside the Backshop at UP’s Burnham Shops at Denver, Colorado, on the evening of December 17, 2015. Normally this can be... (more)

Several EMD locomotives are in the Diesel House at Union Pacific’s Burnham Shops in Denver, Colorado, on December 16, 2015. Built in 1874 by the Rio Grande, the shops and yard at Burnham, locate... (more)

Built in 1874 by the Rio Grande, the shops and yard at Burnham, located a couple of miles south of downtown Denver, Colorado, were the main shop facilities for the railroad. In this later view on ... (more)

Built in 1874, the shops and yard at Burnham, located a couple of miles south of downtown Denver, Colorado, were the main shop facilities for Rio Grande. In this later view on December 7, 2015, Un... (more)

Two employees confer while working on GE C44-9W No. 9632 in Union Pacific’s North Platte Diesel Shop work on May 4, 2011. UP Dash 9 No. 9632 is former Southern Pacific No. 8168.

On May 4, 2011, electricians inside Union Pacific’s North Platte Diesel Shop in Nebraska, work on wire harnesses used in PTC installation for GE locomotives spotted on Track 1.