2024 Map of Dog Keys Pass

About this map

The Gulf Islands National Seashore defines this maritime landscape where the Mississippi Sound meets the open Gulf of Mexico. This coastal survey highlights the dynamic barrier island system off the Mississippi coast, specifically the eastern tip of Ship Island at East Point and the western reaches of Horn Island at West Point. These islands serve as critical buffers for the mainland, separated by the deep-water channels of Dog Keys Pass and the smaller Little Dog Keys Pass. Within the protected boundaries of the Gulf Islands Wilderness, the map documents the natural state of these shifting sands, showing no permanent human infrastructure, only the raw interface of land and sea that has historically guided mariners into Mississippi's harbors.