The Union Pacific pioneered transcontinental rail railroad grew, running freight through half of America meant long consists hauled by some of the largest locomotives ever built. Reaching back to the end of the steam era, Union Pacific pictures giants ranging from the Union Pacific Big Boy 4-8-8-4, and Challenger 4-6-6-4, to engines working local and branch lines, like the Pacific 4-6-2 and the Consolidation 2-8-0. Steam on! (14 × 22 inches, open). Tide-mark press has been publishing quality calendars for over 35 years. Search for these 11 Tide-mark train calendars: Baltimore & Ohio Colorado Narrow Gauge Great Northern Great Trains Howard Fogg's Trains Milwaukee Road Pennsylvania Railroad Railroading! Santa Fe Railway Those Remarkable Trains Union Pacific