2015 Map of Horn Island East

About this map

Horn Island and Petit Bois Island stand as prominent barrier landforms within the Gulf Islands National Seashore off the Mississippi coast. This maritime landscape is defined by the critical transition between the sheltered Mississippi Sound and the open Gulf of Mexico. Navigational features are central to the geography of this area, with the Pascagoula Channel and the deep waters of Horn Island Pass providing essential corridors for vessel traffic moving toward the mainland. The map illustrates the fragile, shifting nature of these coastal islands, which serve as natural buffers for Jackson County. The lack of inland development emphasizes the preserved status of the seashore, focusing instead on the dynamic hydrography and bathymetric transitions that shape the eastern Mississippi shoreline.