long-hawerter mill is a historic grist mill located on little lehigh creek in longswamp township, berks county, pennsylvania. the mill was built about 1800, and is a 1 1/2-story banked stone building measuring 36 feet, 5 inches, wide by 26 feet, 1 inch, deep, with a slate roof. attached to it is a one-story, frame cider mill and one-story, frame maple sugar house. also on the property are the watercourses, consisting of the headrace, pond, and dam. the mill operated into the 1950s.