Which states are consistently included in the region where the Cayuse War took place?
Northwestern United States The Northwestern United States is an informal geographic region of the United States. The region consistently includes the states of Oregon, Washington, and Idaho—and usually Montana and Wyoming. Some sources include southeast Alaska in the Northwest. The related but distinct term "Pacific Northwest" generally excludes areas from the Rockies eastward.
Blackstone Valley The Blackstone Valley or Blackstone River Valley is a region of Massachusetts and Rhode Island. It was a major factor in the American Industrial Revolution. It makes up part of the Blackstone River Valley National Heritage Corridor.