2020 Map of Petit Bois Island

About this map

Petit Bois Island stretches across the center of this maritime survey, a narrow barrier island situated within the protected waters of the Gulf Islands National Seashore. The map delineates the shifting coastal boundaries where the Mobile County and Jackson County line meets the state border between Alabama and Mississippi. This 2020 data captures the landform's isolated position in the open Gulf of Mexico, providing a modern baseline for researchers tracking coastal erosion and the preservation of these critical avian habitats. The absence of roads or permanent structures reflects the island's status as a wilderness area, where natural processes and tidal movements dictate the changing shoreline of the Mississippi Sound.