Wikimedia Commons has media related to Northwest Territory.

For the Canadian territory, see Category:Northwest Territories

Categories

Categories:

History of the Midwestern United States
Former organized territories of the United States
Pre-statehood history of Illinois
Pre-statehood history of Indiana
Pre-statehood history of Michigan
Pre-statehood history of Minnesota
Pre-statehood history of Ohio
Pre-statehood history of Wisconsin
Northwest Indian War