The Wolf Trap Light Station stands in about 16 feet of water on the east end of Wolf Trap Spit, on the west side of the Chesapeake Bay between the York and Rappahannock Rivers, off the coast of Mathews County. It consists of a wooden caisson that supports a cast-iron foundation cylinder and an octagonal two-story brick dwelling with a one-story square tower in turn supporting a cast-iron lantern. Wolf Trap and Smith Point light stations used the same plans and are each integral with all functions combined in one building. Only 11 pneumatic caisson lighthouses were built in the United States, including Wolf Trap and Smith Point. Wolf Trap is listed under the National Register Multiple Property Documentation Form for Light Stations in the United States.