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Friends of the Cedarburg Bog

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Fostering Preservation Through Appreciation

The Friends of the Cedarburg Bog supports stewardship, understanding, and appreciation of the Bog through land management, preservation, research, and education. The Friends host public events including nature walks and picnics, protect the Bog by controlling invasive plants and performing other stewardship activities, and maintain the public areas of the Bog. Check our calendar of programs and events and register today! You may also register by email at or calling the Field Station at (262) 675-6844.
Programs & Events Get Involved

About the Bog

At 2,200 acres, the Cedarburg Bog is one of the largest and most diverse wetlands in southern Wisconsin. In recognition of its outstanding natural qualities, it was designated a State Natural Area in 1952, and was the second property in the state added to this program. The UWM Field Station was founded in 1964, on adjacent lands donated by the Wisconsin Chapter of the Nature Conservancy. The Cedarburg Bog supports an array of unusual plants and animals. Cedar-Tamarack and hardwood swamps, deep and shallow marshes, several bog lakes and a patterned peatland or "string bog" make this area unique.
Explore All The Bog's Wildlife

Help Support The Friends' Mission

Committed and passionate volunteers help to protect and preserve the unique ecosystem of the Cedarburg Bog. Support from the community brings vital life blood to the Friends mission. Every donation is deeply appreciated!
Become a Friend Stewardship Volunteer Donate

Come Visit The Bog!

The Cedarburg Bog is located in the town of Saukville, Wisconsin, about 30 miles north of Milwaukee and 90 miles northeast of Madison. No camping or motorized vehicles are permitted. Public access can be gained on the north end off Highway 33 just east of Newburg. A public parking lot will lead you to a trail to Watts's lake. You can access the south side of the bog by parking at a pull off on Cedar Sauk Road app. 1.5 miles west of Highway I. A trail leads to a boardwalk that provides access to Mud Lake. Canoes or kayaks can be launched from the boardwalk.
More About Visiting The Bog