The Oldest Rocks: Lake Superior

September 21, 2009


Lake Superior's Rocky Shore

Lake Superior's Rocky Shore

Some of the oldest rocks in the world are found on Lake Superior’s shores. It is a good place to find agates.

Read about how the Great Lakes were formed in my book, The Dynamic Great Lakes.  I will be at Schuler’s Books and Music in Grand Rapids, Michigan on 9/24/09 at 5:30 where this book is available.

It is also available at Barnes & Noble, Amazon.com, and many other bookstores.

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