38°15′44″N 85°45′33″W / 38.26222°N 85.75917°W
Corn Island, formerly Dunmore's Island, was an island in the Ohio River at head of the Falls of the Ohio, just north of Louisville, Kentucky. Estimates of the size of Corn Island, now submerged, vary with time, as it gradually was eroded and became submerged. A 1780 survey listed its size at 43 acres (170,000 m2). It then extended from what is now Louisville's Fourth to Fourteenth Streets.[1] The first settlement that later became Louisville on the mainland was established on the island in 1778 by George Rogers Clark.