The Union Pacific pioneered transcontinental rail service. Eventually, 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 mainline Union Pacific class 4-12-2 and Northern 4-8-4s, to engines working local and branch lines, like the Mikado 2-8-2 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 12 Tide-mark train calendars: Baltimore & Ohio Colorado Narrow Guage Great Northern Railway Great Trains Howard Fogg Milwaukee Road Pennsylvania Railroad Railroading! Remarkable Steam Trains Santa Fe Shortline Railroads Union Pacific