Transcontinental Railroad

Following the race to complete the first transcontinental railroad and driving of the Gold Spike in Promontory Point, Utah in 1869, the Idaho Territory remained isolated. 

As there was not a mile of railroad anywhere in the territory, the pioneers got their supplies of manufactured goods mostly from Oregon by way of the Columbia River from Portland to Umatilla Landing and thence...

...by team and pack train--or from Kelton, Utah, via horse drawn freight wagons. Farm implements were often shared.