1951 Map of North Islands, 1972 Print
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1951 Map of North Islands

USGS Topo · Published 1972

About this map

Chandeleur Islands stretch across this mid-century hydrographic and topographic study, showing the fragile barrier island chain as it existed following 1950 aerial photography and 1951 field checks. Much of the land area is protected as part of the Breton National Wildlife Refuge, where shifting sands and marshy outcrops separate the Chandeleur Sound from the open Gulf of Mexico. The map documents the intricate coastline of the North Islands portion of the refuge, featuring the protected waters of Shoalwater Bay and the navigational passage of Smack Channel. This document provides a precise baseline for coastal geologists and environmental historians studying the long-term migration and erosion of Louisiana's easternmost barrier islands before late 20th-century storm cycles further altered the archipelago.


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Map Details

Date Portrayed1951
Date Published1972
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24000
Physical Dimensions22.9 x 26.7 inches

Editions of this 1951 North Islands Map


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Source Details

CopyrightPublic Domain