There are more than 800 natural areas within Oakland County, with many of the largest, most significant natural areas falling within Oakland County Parks.
These "natural communities" include Marshes, Bogs, Prairie Fen, Wet Meadow, Wet-Mesic Prairie, Southern Swamp, Hardwood-Conifer Swamp, Mesic Southern Forest, and Black Oak Barrens, among others.
The Michigan Natural Features Inventory is the primary source of information about the types of species and bio-samples located Oakland County.