At one time, it was believed that the waters flowing from the large swamp south of Pond St., under Pond St. and into Lake Whitehall contained magical healing powers. As a result, the area quickly was built up as a resort area. Visitors came by stagecoach to the Hopkinton Hotel, which was located between Pond St. and the lake. The mineral baths and their powers lured the visitors to the area. The baths can still be viewed by the edge of the stream that drains from the swamp. Within the ACEC area are also two beehive shaped stone structures, about tall. Their origin and use are unknown.