The Alaska Railroad (reporting mark ARR) is a Class II railroad that operates freight and passenger trains in the state of Alaska. The railroad's mainline runs between Seward on the southern coast and Fairbanks, near the center of the state. It passes through Anchorage and Denali National Park, to which 17% of visitors travel by train.
The railroad has 656 miles (1,056Â km) of track, including sidings, rail yards and branch lines. The main line between Seward and Fairbanks is over 470 miles (760Â km) long. The branch to Whittier conveys freight railcars interchanged with the contiguous United States via rail barges sailing between the Port of Whittier and Harbor Island in Seattle.