2011 Map of Petit Bois Pass

About this map

Petit Bois Pass serves as a critical maritime gateway between the open waters of the Gulf of Mexico and the protected reaches of the Mississippi Sound. This 2011 survey documents a dynamic coastal environment where the barrier island landscape is defined by shiftings ands and tidal flows. The western extremity of Dauphin Island is marked by West Point, a narrow finger of land that dictates the northern boundary of the pass. This map provides a clean, hydrographic record of the area's shoreline before subsequent seasonal storms and coastal erosion altered the precise shape of these landforms. It is an essential document for understanding the navigation channels and coastal geography of Mobile County's outermost reaches during the early 21st century.