Freemason Island and the surrounding waters of the Chandeleur Sound represent a shifting maritime landscape in Saint Bernard Parish. This 2012 survey illustrates the isolated landforms and shoals of the outer coast, where the boundary between land and sea is constantly reshaped by tidal forces. Features like Point Neptune and Point Hope mark the extremities of these barrier formations, while Shoalwater Bay provides a sheltered area behind the protective stretch of the island. The presence of Shell Bar highlights the shallow, sediment-rich environment of the sound. This map is essential for those studying the coastal geomorphology of Louisiana or tracing the evolving shoreline of the islands that buffer the mainland from the open gulf.
6 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