Created in 1862 to construct half of the first transcontinental railroad, Union Pacific (UP) became one of America's leading railroads, hauling passengers and freight through some of the most rugged and scenic regions of America. Anyone with an interest in American railroads, from hardcore trainspotters to the mildly curious will enjoy this site, which celebrates UP's long history with short texts and a plethora of photos and images. Users can read about the caboose and passenger trains, learn about historic UP yards and shops, and review several chronologies. The heart of the site, however, is the photo gallery, which features images of historic advertisements, structures and yards, nineteenth-century stereo views, scenic locations, and a large number of trains (steam and diesel) in action. Take a ride on the rails.