Potomac is known for its Artesian wells, and its local High School teams were known as the "Potomac Artesians" until area secondary school consolidation in the late 1980s. One of these wells spouted an eight-inch stream of water 32 feet into the air until the 1930s. Three wells presently operate in open areas, one located in the downtown area, another on the southeast edge of the community, and another in West Side Park, on the west edge of town area where Fourth of July celebrations were once held, locally referred to as "The Jubilee", in conjunction with an annual Horse Show.