Big. That’s the best way to describe the Harold C. Wilson Three Springs Nature Preserve. Big in
size—at 515 acres it is one of the largest purchases ever by the Door County Land Trust. Big in historical significance—it has a long association with the area’s cultural past. And big in ecological importance—it preserves a key piece in a wildlife corridor that has been described as one of the premier natural landscapes of the western Great Lakes. Big and wild though it may be, the preserve is located just two miles outside of Sister Bay. The springs and creek that meander through the
property give the preserve its name, but more importantly these wetlands provide specialized
habitat for plants and animals, including endangered and threatened species such as the Hine’s emerald dragonfly, dwarf lake iris and showy lady’s slipper.