Northwest Territories—a huge area of sub-arctic and arctic Canada:
- When the nights are dark in autumn and winter, the northern lights come out in the Northwest Territories of Canada.
Northwest Territory—(U.S. hist.) an area created by Congress in 1787, covering present-day Illinois, Indiana, Michigan, Ohio, Wisconsin and eastern Minnesota:
- A committee of Congress, headed by James Monroe, made a report about a plan for governance of the Northwest Territory.