Skip main navigation

NOAA logo


GLERL logo

Skip Outreach subnavigation

About Our Great Lakes

Educational Programs

Community Programs

Career Information

Great Lakes Sea Grant Extension Office



About Our Great Lakes: Tour

Introduction | Background | Ecology | Economy
Great Lakes Facts | Threats | Lake by Lake Profiles | Tour

The Great Lakes are the largest system of fresh surface water on earth, containing roughly 18 percent of the world supply. The lakes contain enough water to cover the entire surface of the continental United States to a depth of 9 feet. The Great Lakes span more than 750 miles from west to east and their shoreline is equal to almost 44 percent of the circumference of the earth. Michigan's Great Lakes coastline alone is over 3,200 miles long, which is more coastline than any state but Alaska.

To highlight some of the interesting coastal and subsurface features of the Great Lakes, the NOAA Great Lakes Environmental Research Laboratory has assembled a narrated Google Earth tour.

Download Google Earth*

Launch Google Earth Great Lakes Tour (you will need to download Google Earth in order to view tour). You can also watch the tour using the Earth API below.

Back Great Lakes profiles

*Link leads off GLERL's website



--> 'use strict';