History of rail in Oregon

[1] Byron J. Pengra, the Surveyor General of Oregon from 1862 to 1865, secured a federal land grant in 1864 for the Oregon Central Military Wagon Road from Eugene to Owyhee, and proposed a railroad along this line, then joining the transcontinental railroad near Winnemucca, Nevada.

[1] William Williams Chapman, Surveyor General of Oregon from 1857 to 1861, proposed a railroad along the Oregon Trail from Portland, over the Blue Mountains, along the Snake River, then south to the transcontinental railroad at Salt Lake City.

[1] Rail routes to follow the Oregon Trail were surveyed by the government, Union Pacific, and others, including James H. Slater and Dan Chapman's Grande Ronde Valley and Columbia River Valley Construction Company in 1874, and the Blue Mountain and Columbia River Rail-Road Company's narrow gauge effort.

Union was already building an extension from Brigham City, Utah to Butte, Montana that could be extended west.

Villard reached an agreement with Northern Pacific in 1880, which gave Portland access to transcontinental rail lines.

An advertisement for the celebration of the new Coos Bay Railroad
A map of Willamette Valley rail lines from 1919.