Northwestern States Mission was created in 1897.
In the United States, Washington is the northwestern most state.
delaware
The State of Alaska, which is part of the United States, has a border with the northwestern region of Canada.
Washington
There are two correct forms, neither of which is exactly given in the question: "Oregon is a [not "the"] northwestern state" or "Oregon is one of the northwestern states."
It is in Northwestern Arizona.
Idaho, Wyoming, Washington, Montana, and Oregon
Idaho, Wyoming, Washington, Montana, and Oregon
alaska, hawaii, and the northwestern continental states
The Grand Canyon National Park is located in the northwestern corner of the state of Arizona in Coconino County, in the United States of America.
in the northeastern, northwestern, and north central united states