The Potomac Palisades Site is an archaeological site in Washington, D.C., United States. Measuring approximately 1 acre (0.40 ha) in area, the site lies near the intersection of MacArthur Boulevard and Foxhall Road, along the Potomac River. It is one of many archaeological sites located in the present-day Potomac Palisades; a 1984 field survey revealed evidence that supported earlier ideas of the archaeological richness of the northern bank of the Potomac in this area.