You can also track where the Big Boy is on its journey through the Union Pacific steam schedule. As part of its “Westward Bound” tour, the world’s largest steam locomotive is coming to ...

Union Pacific's famed Big Boy steam locomotive will be headed west during its "Westward Bound" summer tour. The world's ...

Instead, this is a steam turbine, nothing like the 1920s and 30s experiments with conventional locomotives, nor even the Union Pacific’s oil-fired condensing turbo-electrics. The new idea here ...

Instead, this is a steam turbine, nothing like the 1920s and 30s experiments with conventional locomotives, nor even the Union Pacific’s oil-fired condensing turbo-electrics. The new idea here ...

There are steam locomotives, and then there’s “Big Boy.” At 604 tons and 132 feet long and with a 4-8-8-4-wheel arrangement, it is the largest, most powerful steam locomotive in the world.

Just days after we wrote about the problem of trying to introduce cleaner locomotives into existing railway's fleets, Union Pacific Railroad has unveiled the first of 60 new environmentally ...