Great Lakes Trivia Questions

Lake Erie is actually the shallowest Great Lake, with an average depth of only 62 feet (19 meters). The deepest is Lake Superior at over 1,300 feet.

Glacial advance and retreat about 10,000 years ago scoured out the Great Lakes basins. As the ice melted, the basins filled with water.

Lake Michigan is the only Great Lake wholly inside the U.S. The other four (Superior, Huron, Erie, Ontario) share borders with Canada.

The Great Lakes do have small tides (a few inches) caused by gravitational pull, but they are much weaker than ocean tides. Most people do not notice them.

The Great Lakes hold about 84% of North America's surface freshwater and roughly 21% of the world's supply, making them a vital freshwater resource.

Lake Superior covers approximately 31,700 square miles, making it the largest freshwater lake by surface area in the world and the largest among the Great Lakes.

The Great Lakes hold about 21% of the world's surface freshwater, not more than half. The largest share is in Lake Baikal and the African Great Lakes.

Lake Superior is the deepest Great Lake at 1,332 feet (406 meters). It also has the largest surface area and volume of the five lakes.