Lake Huron, the third largest of the Great Lakes, is contained within a basin underlain by ~400 million year old (0.4 bya) limestone, dolomite, and gypsum bedrock — rock that was formed from the ...

Dr. John O'Shea from the University of Michigan has studied a rock formation in Lake Huron, dating back 9,000 ... believed to have been used for ancient hunting practices, possibly to channel ...

Any stone hunting structures ... from walls and rock piles created by modern inhabitants. O’Shea thought that the ridge sitting beneath the waters of Lake Huron, now known as the Alpena-Amberley ...

The park’s current facilities include a boat launch, Lake Huron access, picnic areas and vault toilets. Uses include ...