Long before any settlers arrived, the original 1870 government survey of the area showed that just west of and parallel to the Atlantic Ocean's coastal dune was the "Boca Ratones Lagoon", which extended south for measured from just north of the present location of Atlantic Avenue in Delray Beach. Along the southern half of the lagoon were three wide areas each called a "Lake", which are now named (north to south) Lake Rogers, Lake Wyman, and Lake Boca Raton. At the southeast end of the lagoon was a short protrusion toward the south which would become the Boca Raton Inlet after a sandbar at its mouth was removed.