Lake Superior

A little east of the middle of North America, Lake Superior (or gichigami in Ojibwe) is an inland sea containing 3-quadrillion gallons of water. That’s:

  • 3,000,000,000,000,000 gallons (11.4-quadrillion liters)
  • Enough to submerge North and South America under 1 foot of fresh water
  • 10% of the world’s fresh surface water
  • Over half of the water contained in the Great Lakes

Lake Superior is the largest freshwater lake in the world by surface area and the third largest by volume. Scoured into its present form by the retreating glacial ice sheet covering the region during the last Ice Age (about 10,000 years ago), Superior’s cold waters are bounded by northern hardwood and conifer forests and buffeted by continental weather patterns. continued…


Featured Articles

Large Mayfly Hatch Prompts Public Concern
Mayflies emerged by the thousands along the bay side of Park Point during the summer of 2007, sparking public fears of a fish kill.
Superior Pursuit: Facts About the Greatest Great Lake
Whether you visit Minnesota's North Shore or live there year-round, Lake Superior is a constant source of wonder.
Lake Superior Water Levels
Lake Superior is currently (2007) at a near-record low for its water level.
The Mystery of the Missing Smelt
Many factors have been playing into the fluctuation of the smelt population.
Lake Superior's Physical Characteristics
Despite Lake Superior’s massive size, it only manages to support a limited amount of aquatic life.
Lake Superior's Natural Processes
The lake has a significant impact on patterns. There are also several interesting physical processes that take place in the lake.
Humans & Lake Superior
Lake Superior’s basin has a significantly lower population, but it’s home to the Great Lakes’ largest port, Duluth-Superior.
Rip Currents: Escape the Grip of the Rip!
About rip currents on the Great Lakes and what you need to know to enjoy the beach safely

See Also:

Superior Science News
A radio series about Lake Superior research.

Sea Grant Topics

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Last modified on July 29, 2008
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