It is a remnant of the Spokane, Portland and Seattle Railway, running from Wishram, Washington in the north to a connection with the Union Pacific at Chemult at its south end.
The Oregon Trunk Line railroad surveyed the route in 1906,[2] with the golden spike driven at Bend on October 5, 1911.
[3] The competing companies' workers became embroiled in a Railroad War during construction, with attacks involving dynamite, guns, and general brawls.
[3][4][5][6] A truce was called in 1909 to allow the two to build a joint track through the narrow Deschutes River Valley.
[7][8] The order was finalized the following year with Great Northern additionally acquiring trackage rights on the Southern Pacific line between Chemult and Klamath Falls.