Mackinac Island By Shane G. Mackinac Island Becoming A National Park Mackinac Island became a national park in 1875-1890, and became a state park after that since it was a big tourist attraction. Mackinac Forming Fort Mackinac formed by mankind. The land was formed by glaciers. Rock Types •Arch rock •limestone The land is changing •There was no information found. Environmental Issues •Asian carp •Zebra mussels Special Features • Arch rock • Grand hotel • Fort Bibliography •Google images •Wikipedia Mackinac Island By Shane G.
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