Lake Superior

Superior is the largest of the Great Lakes, and ranks as the second largest in the world by surface area. It is 350 miles long and 160 miles wide, with an average depth of 489 feet. 

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Ontario Ministry of Natural Resources and Forestry

On Lake Superior, wolves and their prey are starring in a pair of life-or-death dramas. 

On a Canadian island, wolves threaten to wipe out a once-strong herd of caribou -- triggering rescue efforts. Across the lake, on the U.S. side, the decline of a wolf pack has led to a skyrocketing moose population -- and pleas to import more wolves.  

Dave Rosenthal

If you like ice, you have to love the Great Lakes, where it comes in all shapes and sizes. With the recent deep freeze, we're seeing a lot more ice than in the past few winters -- including a frosty Niagara Falls. ​Here's a look at some unusual shapes and sizes:

Nuclear Regulatory Commission

The Great Lakes/St. Lawrence River make up the world's biggest freshwater system -- and an enormously valuable resource. It supplies drinking water for millions of residents and powers the region's economy.

Last year, 42 million gallons were withdrawn from the basin each day, according to a new report from the Great Lakes Commission. Here's where it went.

Amy Nichole Harris/Shutterstock

Note: Updated on Dec. 6, based on lake surface temperatures in November, which significantly lowered predictions for the ice cover. --

Over the past two winters, the Great Lakes have had a below-average ice cover. And that’s expected to continue this year.  


For the anniversary of the Edmund Fitzgerald's final voyage, mlive has put together an interactive graphic about the doomed freighter. It provides some of the radio chatter that surrounded the freighter as it was pummeled by a powerful storm on Lake Superior.

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