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1958 Map of Petit Bois Island

Name: 1958 Topographic Map of Petit Bois Island
Creator: U.S. Geological Survey
Published: 1959
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1959

About this map

Petit Bois Island stretches across the maritime boundary of the Alabama Mississippi state line in the late 1950s. This survey, compiled from hydrography recorded just years prior, illustrates the shifting sands of the barrier island as it divides the Mississippi Sound from the open Gulf of Mexico. The landscape is defined by its low-lying marsh and beach terrain, featuring internal ponds and a navigational Light marking the western reaches.

Industrial and maritime activity is evidenced by the Intracoastal Waterway passing to the north, maintained at a Project Depth 12 Feet for coastal shipping. Marine infrastructure like the Cable Area and various Piles indicate the human footprint on these waters. The map specifically delineates the maritime border between Mobile Co and Jackson Co, providing a precise look at the geography before decades of coastal erosion further altered the island's profile.