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The Robinson Library >> American History >> United States: Local History and Description >> The West >> Idaho
Idaho Territory in 1863

Officially established on March 4, 1863, Idaho Territory originally included all of what are now Idaho and Montana, as well as most of Wyoming.

map showing the original Idaho Territory outlined in red

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The Robinson Library >> American History >> United States: Local History and Description >> The West >> Idaho

This page was last updated on November 29, 2017.