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1955 Map of Isle Au Pitre

Name: 1955 Topographic Map of Isle Au Pitre
Creator: U.S. Geological Survey
Published: 1959
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1959

About this map

Isle au Pitre and the western tip of Cat Island anchor this coastal survey of the maritime border between Louisiana and Mississippi. The landscape is defined by a complex network of shoals, banks, and channels, including the Juan De Cuevas Claim and the Intracoastal Waterway cutting through Mississippi Sound. Navigational aids like the Lighthouse at West Point and various lights along Pass Marianne indicate the vital importance of these waters for mid-century maritime transit.

The separation of St Bernard Parish and Harrison County is traced through the South Pass and Cat Island Channel. Southward, the marshy island terrain transitions into Chandeleur Sound, with features like Creole Gap, Grand Pass, and L Bayou Pierre marking the intricate shoreline. The presence of named maritime hazards such as Potato Hills, Porpoise Shoal, and Cabbage Reef provides a detailed view of the shifting seafloor before later coastal changes.