The Trumpeter Swan Preserve is a 48-acre KRLT property that includes the headwaters of the Kinnickinnic River, wetlands, groundwater seeps, planted pine and oak trees, uplands, and a former Trumpeter swan nesting site.

The preserve is bordered on the south by the Wisconsin DNR Headwaters Fish and Wildlife Area and a private property that the KRLT holds an easement on.

Location: South of 70th Ave and west of 150th Street in the Town of Warren, St. Croix County. Access to the property is currently available from the DNR property to the south.