A surprisingly clean Union Pacific GP15-1 awaits a call to duty in the former D&RGW Fourth South yard in Salt Lake City. The UPY 637 was built the Missouri Pacific 1637 by EMD in Oct. 1979.

Looking east from the 10th West crossing toward downtown Salt Lake City as the YRO52R shoves slowly off the rickety lead from the Salt Lake Garfield and Western Railroad's yard after picking up th... (more)

Looking west across 10th West in downtown Salt Lake as the YRO52R trundles slowly down the rickety lead to the Salt Lake Garfield and Western Railroad's yard to make a pick up of two boxcars. Thi... (more)

Engineer of UP Y637 coupled with UP 563 is waiting for the reverse signal, they are moving freight cars around in the Ogden, Utah yard. This yard switcher was at one time apparently a MP unit.