The preservation of some wetlands that impact wildlife, water, and fish quality in and around Door County continues to grow. The Gibraltar-Ephraim Swamp State Natural Area will grow by 75 acres with the addition of two forested areas near Ephraim's Eagle Harbor. The now 383-acre preserve protect coastal wetlands vital to flood control. It's bound on the north, south, and east sides by the Niagara Escarpment. Tom Clay, Executive Director of the Door County Land Trust, says in addition to flood control and wildlife protection, the swamp is an economic asset for the area.
Among the endangered species that benefit from the Gibraltar-Ephraim Swamp Natural area is the Hines emerald dragonfly.