How exactly did glacial ice dig such deep and large lakes?

Subject: How exactly did glacial ice dig such deep and large lakes?

Date: Fri Jun 15 23:25:28 2001
Posted by Steven
Grade level: nonaligned School: No school entered.
City: Clinton Township State/Province: MI Country: USA
Area of science: Earth Sciences
ID: 992661928.Es

Message:


How exactly did glacial ice dig such deep and large lakes as the Great Lakes? 
Also, why do we not see similar features elsewhere? What was so unique about 
the Michigan region?

Re: How exactly did glacial ice dig such deep and large lakes?

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