An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Lake Huron

map of Lake HuronLake Huron is the Great Lake that forms Michigan's mitten shape right next to Canada. It has the longest shoreline of the Great Lakes. It is the third largest of the lakes by volume with 3,540 km (850 cubic miles) of water. Its average depth is 59 meters (195 feet) and its maximum depth is 229 meters (750 feet); The Saginaw River basin is intensively farmed and contains the Flint and Saginaw-Bay City metropolitan areas.  Saginaw Bay, like Green Bay, contains a very productive fishery.

On this page:

About Lake Huron 

  • the second largest by surface area
  • the third largest by volume
  • Mackinac Island is a popular toursit attraction
  • vacation homes on the shallow, sandy beaches of Huron and along the rocky shores of Georgian Bay
  • Saginaw River basin is intensively farmed
  • Flint and Saginaw-Bay City metropolitan areas
  • Saginaw Bay contains a very productive fishery

NOAA Image Measurement of Depth of Water in Lake Huron Image

What EPA is Doing