Britannica
Sources used in this answer
Which Great Lakes form part of the border between the United States and Canada?
Created from Britannica articles
using AI.
AI can make mistakes, so verify using Britannica articles.
Great Lakes
Marquette Harbor Lighthouse on Lake Superior, Marquette, Michigan.
The Great Lakes consist of five major lakes: Superior, Michigan, Huron, Erie, and Ontario.12
Four of these lakesāSuperior, Huron, Erie, and Ontarioāform a natural international border between Canada and the United States. Lake Michigan is the only one of the five that lies entirely within the United States.123