2000 Map of Petit Bois Island

About this map

Petit Bois Island stands as a slender barrier between the Mississippi Sound and the open Gulf of Mexico. At this time, the island’s shifting sands are defined by the overlapping protections of the Gulf Islands National Seashore and the Petit Bois National Wildlife Refuge. The map captures the maritime infrastructure of the turn of the century, including the Intracoastal Waterway to the north and the historic marker for the Horn Island Lighthouse. Because no roads exist on this quadrangle, the focus remains entirely on the coastal topography, shoals, and the Indefinite Boundary marking the maritime border between Jackson Co and Mobile Co. This survey documents a fragile landscape shaped by tides and storms, showing the precise shoreline before later major hurricanes altered the island's footprint.