'Big Boy' No. 4014, the world's largest, heaviest and most powerful operating steam locomotive, arrived in Western New York on Tuesday as part of its coast-to-coast tour to celebrate the nation's 250th birthday. Built in 1941, the train measures 132 feet long and weighs 1.2 million pounds. The train got to Chautauqua County earlier Tuesday and is scheduled to be in Buffalo on Wednesday. #bigboy #america250 #buffalo #wny