I saw several Chocolate Labs in Michigan on www.petfinder.com
They even had some puppies, but all those have been adopted. I would just keep your eye on that site and visit shelters in your area. Its going to be harder to find a Chocolate Lab in a shelter or rescue than it is to find a black or yellow, but be patient and you WILL find one! I have seen some cuties in the shelters I work at.
Here are some contacts of Lab Rescues in MI:
Huron River LRC
Sharon Pardo (734) 878-2896
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Labrador Retriever Rescue http://www.angelfire.com/mi/michiganlabrescue/index.html
John & Shirley Fedoronko (313) 561-1017
[email protected],
[email protected]
Leslie Stearns (313) 278-4317
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Michigan Purebred Labrador Retriever Rescue
Kathleen & Ralph Natushko (248) 589-8529
Kristin & Matt Henderson
[email protected]
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****West Michigan Chocolate Lab Rescue
Susan Paauwe (616) 335-9718
[email protected]
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The last one is for Chocolate Labs specifically!