Located along Lake Michigan in the city of Mequon, Donges Bay Gorge Natural Area is 23 acres. This preserve contains steep lake slopes, beach frontage, an undulating upland lake bluff, upland woods and a ravine that extends through the property. OWLT is restoring historically and regionally scarce vegetation communities to both increase biodiversity and improve wildlife habitat to greater support the Lake Michigan Migratory Flyway. Visit this preserve to hike or bird watch. Pets on leash welcome.