Department of Natural Resources
Recognition: Legally Dedicated Natural Area
Size: 105 acres
Location: Approximately 10 miles southwest of Pontiac.
Management: Proud Lake Recreation Area
Activities: This natural area is very difficult to access and is a very fragile ecosystem.
Importance: Located upon a pitted outwash plain, the area's outstanding feature is a deep depression formed as a glacier receded and left behind a large ice-block. The crater was created by the great weight of the ice-block pressing down. The ice-block ultimately melted into the crater it had formed. This depression now houses a floating (quaking) bog and tamarack area. The bog area and surrounding woodland encompass one of the richest botanical spots in southeast Michigan. This area provides habitat for many showy and/or unusual plants.
Proud Lake bog and tamarack area