A great big rolling disaster. Union Pacific (UP) is a railroad whom buys greater railroads just to piss off railfans. UP has many Ex. SP units with a UPatch over the SP logo and Number.
Union Pacific is a great big rolling disaster
by WhiteDragon69 July 14, 2010
1 more definition
Union Pacific is an awesome railroad. It is the only class one railroad in the United States with an active steam program. The railroad owns and operates a northern and a challenger type steam locomotive. Union Pacific helped Central Pacific to build the transcontinental railroad across the United States.
I wish I could railfan the Union Pacific line.
by TorvFan March 14, 2011