Union Pacific

Union Pacific’s Famed Big Boy Kicks Off America 250 Tour from Historic Transcontinental Site

Union Pacific’s legendary Big Boy No. 4014 steam locomotive embarked on its first coast-to-coast tour today in celebration of America’s 250th anniversary with a kickoff ceremony held at Milepost 0 in downtown Sacramento – the historic site where the Central Pacific Railroad began construction on the first transcontinental railroad line in 1863.