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Koenn Preserve


Koenn Preserve Trail Map (PDF)


  1. Birdwatching
  2. Parking
  3. Trails - Natural Ground, Unimproved

About the Herman S. Koenn Preserve

The preserve consists of a variety of habitats including oak hickory forest, open fields, marsh wetlands and a shrub wetland. The shrub wetland includes highbush blueberry and chokeberry as part of the plant community. Highlights to be enjoyed while visiting this preserve include frogs “singing” in the wetlands in spring, sandhill cranes flying overhead in autumn and lovely views in all seasons.

  • Acres: 90
  • Established: 2016
  • Trail Length: .95 mile

Welcome to the Herman S. Koenn Preserve, operated by the Washtenaw County Parks & Recreation Commission and was purchased through the Natural Areas Preservation Program.

Goose Lake

Some of the Koenn Preserve wetlands drain into the Goose Lake State Game Area, which is owned and operated by the Michigan Department of Natural Resources Wildlife Division. The Goose Lake property contains agricultural land (including some fields managed as wildlife food plots), a ponderosa pine planting, an old orchard field, and natural habitats including marsh, tamarack swamp, and the open water of Goose Lake itself. Waters that flow from Goose Lake form the headwaters of Mill Creek, the largest creek watershed of the Huron River, covering 145 square miles. The connection of the Koenn Preserve to this DNR land makes the preservation of the Koenn land that much more important!


From I-94, take exit 157 and travel south/southwest on Old U.S. Highway 12. Follow Old U.S. 12 about 1.5 mile and turn Left (South) onto Hayes Road. The entrance to the preserve will be just over a mile down the road on the west side of the road.