No. 4014 is the only one in operation. Union Pacific reminds all rail fans to keep safety top of mind and stay 25 feet back from the tracks when taking a picture or viewing this mammoth machine.

OMAHA, Neb.--(BUSINESS WIRE)--Union Pacific Railroad today announced its famed Big Boy No. 4014 locomotive will stop in more than three dozen communities during its fall tour across 10 states ...

OMAHA, Neb.--(BUSINESS WIRE)-- Union Pacific Railroad announced today its legendary steam locomotive, Big Boy No. 4014, will make two whistle-stops in Greeley, Colorado, this summer as part of a ...