
Breton National Wildlife Refuge encompasses the fragile, shifting landforms of this coastal landscape, situated within the expansive waters of Chandeleur Sound. This 2024 survey documents the isolated coastal morphology of Freemason Island and the North Islands as they exist in the modern era. The presence of features like Point Neptune, Point Hope, and Shell Bar illustrates a precarious geography defined by the ebb and flow of the Gulf, where small spits of land provide critical habitat. The map details the sheltered waters of Shoalwater Bay, offering a precise record of the shoreline for environmental researchers and those studying the contemporary state of the Louisiana coast.
8 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1893 · Chandeleur
USGS Topo · 1:62,500
1951 · North Islands
USGS Topo · 1:24,000
1951 · New Harbor Islands
USGS Topo · 1:24,000
1951 · Stake Islands
USGS Topo · 1:24,000
1951 · Freemason Island
USGS Topo · 1:24,000
1957 · Breton Sound
USGS Topo · 1:250,000
1961 · Breton Sound
USGS Topo · 1:250,000
1982 · North Islands
USGS Topo · 1:100,000
1983 · Black Bay
USGS Topo · 1:100,000
1998 · New Harbor Islands
USGS Topo · 1:24,000