1998 Map of North Islands, 2001 Print
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1998 Map of North Islands

USGS Topo · Published 2001

About this map

Breton National Wildlife Refuge encompasses the fragile, shifting crescent of the Chandeleur Islands in this late-20th-century topographic record. Located in St. Bernard Parish, this maritime landscape is defined by the transition from the relatively protected waters of Chandeleur Sound and Shoalwater Bay to the open Gulf of Mexico. The map details the intricate network of tidal flats, marsh, and sand spits that form these barrier islands, providing a baseline for studying coastal erosion and hurricane impacts on Louisiana's outer defenses. Unlike mainland maps, this sheet focuses entirely on the hydrographic and topographic relationship between the barrier chain and the deep Smack Channel, offering essential data for maritime historians and environmental researchers interested in the evolution of the Mississippi River delta's eastern perimeter.


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Map Details

Date Portrayed1998
Date Published2001
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22 x 26.8 inches

Editions of this 1998 North Islands Map

This is the sole edition of this map. No revisions or reprints were ever made.


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Source Details

CopyrightPublic Domain