Door Peninsula Wisconsin

April 21, 2016

white cedar on the Door PeninsulaLayers of limestone on the Door Peninsula, Wisconsin.  An arbor vitae clings to the stone on the shoreline of Lake Michigan.  Read more about the Great Lakes in my book, The Dynamic Great Lakes.


The Dynamic Great Lakes on Kindle    

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This critically acclaimed book is also available in paperback from many bookstores and online at, and many other places.


DynamicGreatLakes-Independent_FullCover copy

updated fourth edition

Now available on Kindle

To learn about the Great Lakes and their interesting features, The Dynamic Great Lakes is for you.

Now updated in a fourth edition, Amazon has made the book available on the Kindle e reader as well as in paperback. The book is concise and suitable for all readers.

Our Inland Seas

August 9, 2011

watercolor by Barbara Spring

My watercolor of a tern flying over a turbulent lake. These birds seem to love the air streams that flow over the lakes. Lake Michigan can be wild, but so can the other lakes. The shallowest, Lake Erie can become violent and boaters should know this before heading out.

Lake Superior is known for its storms and there are many ship wrecks lying on the bottoms of all the lakes. The waters surrounding Door Peninsula in Lake Michigan, once called Death’s Door in Wisconsin was fatal for many ships. The Bruce Peninsula in Canada is the place where many ships went down. I have taken glass bottom boats in Lake Michigan and Lake Huron to view sunken ships. These lakes behave more like oceans. They are called inland seas for good reasons.

Here is a white cedar clinging to the rocks on the Door Peninsula in Wisconsin. The Door Peninsula is part of the Niagara escarpment, sedimentary rock laid down during the time when saltwater seas covered the area where the Great Lakes freshwater now flows.

The Bruce Peninsula in Canada is also part of the Niagara escarpment. I have enjoyed hiking on both peninsulas. Fossils may be found in these rock formations and the cedars may be very old, but not very large. They seem to dare the wind and waves to knock them over.

For more info about the Great Lakes please read The Dynamic Great Lakes

Also visit the Lakeshore Museum on Clay in Muskegon.  There are  new displays showing the various life forms that lived in the Great Lakes region in ancient times when there were salt water seas, Ice Ages, and the present.