Map Of Idaho Oregon Border: Web idaho became a territory of the us following the signing of the oregon treaty in 1864. Nevada, oregon, washington, montana, wyoming, and utah. This map shows cities, towns, highways and main roads in idaho, washington and oregon.

Map Of Idaho Oregon Border

Web the colombia river largely defines oregon’s border with washington state in the north; The state’s border with nevada and utah lie on the 42nd parallel. Annex, or is the closest town to idaho at about 3,839 feet.