The Great Lakes basin spans 8 U.S. states, including Minnesota, Wisconsin, Illinois, Indiana, Michigan, Ohio, Pennsylvania, and New York.

The Great Lakes basin, which includes eight U.S. states, is one of the biggest and most ecologically significant regions in North America. These states include Minnesota, Wisconsin, Illinois, Indiana, Michigan, Ohio, Pennsylvania, and New York. The basin, which is made up of the five Great Lakes (Lake Superior, Lake Michigan, Lake Huron, Lake Erie, and Lake Ontario) and their tributaries, affects millions of people, businesses, and wildlife. This region is essential for transportation, agriculture, recreation, and water resources. The health of the Great Lakes basin is crucial for the environment and local economies because it sustains a wide variety of ecosystems and human activities.