It is about 950 miles.
How far is Sandpoint Idaho from Boise Idaho?
It is 778 miles according to Google Maps.
It is 476 miles from Salem, Oregon to Boise, Idaho.
About 104 miles on I-84 E
600,549 miles from Boston to Boise Idaho
611 miles
635 miles
It was Lewiston at first, but disputes over where the capital should be resulted in it being moved to Boise. Boise was growing in size and closer to the center of the state. Lewiston was too far north. It can be argued that Boise is now too far southwest, but there aren't big enough cities near the true center of the state to make one capital. Plus, many capitals aren't in the center of their states anyway.
261 miles
Its either 625 miles ... or 1142 miles.
It is 1051.09 miles according to MapQuest.
The driving distance from Tucson, Arizona to Phoenix, Arizona is 116 miles.