Coffee Swamp is a freshwater swamp located on the northern edge of Washington Island, in Door County Wisconsin and is a designated state natural area since 1994. At the center of the swamp is a small, shallow pond. The swamp represents a boreal forest, and hosts a number of plant species including various sedges, ferns and other rare plants. Snowberry, round-leaved sundew, and pitcher plants grow in small mounded areas of sphagnum moss under some of the cedars.