The merger of Union Pacific Railroad with Missouri Pacific and Western Pacific took effect on January 1st, 1983. In March 1983, Western Pacific GP40 3532 was painted in UP yellow and gray while r... (more)

WP GP40 3532, the only engine painted in UP colors and lettered for Western Pacific, works an eastbound local in Pomona (Spadra), CA on August 9, 1983.

Coming off the high line headed for Oroville, California