In the years following the Civil War, the land west of the Mississippi River was being settled and the Pacific Northwest explored. There remained, however, a large portion of Montana, Idaho, and Washington that contained enormous quantities of timber and minerals, but was not accessible by rail. By far the most grueling stretch was the Stevens Pass area in the Cascade Mountains.
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![Stevens Pass Railroad Tunnels & Switchback System](/sites/default/files/styles/landmark_node_/public/stevens_pass.jpg?itok=AR2DPesI)
YearAdded:
Image Credit: Courtesy Wikipedia/SeattleretroImage Caption: Railroad development in Stevens Pass made accessible a timber and mineral rich region of Montana, Idaho, and Washington.Era_date_from: 1900
1993
Innovations
![Stevens Pass Railroad Tunnels & Switchback System](/sites/default/files/styles/thumbnail/public/stevens_pass.jpg?itok=AJvEd0sG)
In the years following the Civil War, the land west of the Mississippi River was being settled and the Pacific Northwest explored. There remained, however, a large portion of Montana, Idaho, and Washington that contained enormous quantities of timber and minerals, but was not accessible by rail…
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