Located in the Town of Saukville, Shannon Preserve is 34 acres in size. It was acquired by the land trust in 2010. The surrounding area is known for its wetlands, which include the Cedarburg Bog, the first-named State Natural Area in Wisconsin. An unnamed creek on this property connects the wetlands here to a lake in the Cedarburg Bog This preserve contains a variety of wetland habitats, including cattail marshes, shrub carr, lowland hardwood forest, fresh (wet) meadows, and upland meadows.