1.2 Million Pounds Flys Over Frost. Making it's historic return to Southern California, Union Pacific's "Big Boy" steam locomotive, UP 4014, flys over a UP manifest at Frost as it continues its assault on Cajon Pass following a servicing stop in Victorville. This coming weekend the 1941-product of the American Locomotive Company will lead a special train benefitting the Rail Giants Museum in Pomona, which served as the home and caretaker of 4014 for 52 years, up Cajon Pass to Barstow and return over two days.
