"Mattapony" was one of the most widely used place-names of the Algonquian Indians in Maryland and Virginia. As early as 1639, a "Mattapony Path" was known in St. Mary's County--it led to Mataponi Creek, a tributary of the Patuxent River. "Place Names of Maryland" states that the Algonquin meaning of "matta" was "joined," or "junction," and "apo" was "water," "current," or "expanse of water," i.e., "meeting of waters at a sand spit". Mayre states in the "Maryland Historical Magazine", in an article entitled "Sea Coast of Maryland":