Freemason Island sits as a solitary landform within the expansive waters of Chandeleur Sound in this 2020 survey of the Louisiana coast. This maritime landscape in Saint Bernard Parish is dominated by open water, illustrating the isolated nature of the barrier islands that protect the mainland. To the northeast, the North Islands appear as small outcroppings on the horizon. The map reflects a highly dynamic coastal environment where small changes in elevation and sea level determine the very existence of these named features. For researchers of Gulf Coast geography, this document provides a precise record of the shoreline and visible landmasses at a specific moment in the twenty-first century.
3 named features on this map. Tap any name to fly to it.
Don’t see what you’re looking for? This feature index may not catch every label — zoom into the map to look around manually.
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