2020 Map of Deer Island

About this map

Deer Island sits just off the coast of Biloxi, serving as a primary natural breakwater between Biloxi Bay and the open Mississippi Sound. This coastal geography is defined by the extensive Gulf Islands National Seashore, which encompasses large portions of the maritime landscape and surrounding waters. The map details the transition from the urbanized coast to the protected inlets of Grand Bayou and the navigational corridor of the Intracoastal Waterway. To the east, a dense network of residential streets such as Seaclife Blvd, Barnacle Blvd, and Neptune Ave highlights modern coastal development near the Harrison and Jackson County line. The maritime environment is further characterized by Little Dog Keys Pass at the southern edge, illustrating the complex hydrology of the Mississippi Gulf Coast in the early twenty-first century.