What development in Price George's County is located along the Potomac River?
Oxon Hill-Glassmanor, Maryland: Oxon Hill-Glassmanor was a census-designated place (CDP) in Prince George's County, Maryland, for the 1990 and 2000 censuses. National Harbor, Maryland: National Harbor is a development along the Potomac River in Oxon Hill, Prince George's County, Maryland just south of Washington, D.C. near the Woodrow Wilson Bridge.
National Harbor