sentences:  Shell Mound Park, along the Island's northern shore, is administered by Alabama Marine Resources Division.In 1519, the Spanish explorer Alonso Álvarez de Pineda was the first documented European to visit, staying long enough to map the island with remarkable accuracy.The island's French history began on January 31, 1699, when the explorer Pierre Le Moyne, sieur d'Iberville, one of the founders of French Louisiana, arrived at Mobile Bay, and anchored near the island on his way to explore the mouth of the Mississippi River.