Gulf of Mexico waters dominate this coastal survey, which documents the maritime environment of Saint Bernard Parish at the edge of the Mississippi River Delta. This specific area is defined by the transition from the open sea to the protected stretches of Chandeleur Sound. Unlike many mainland quadrangles, this map records a purely nautical landscape, capturing the state of these vital Louisiana fishing and navigation grounds during the 2020 survey period. The absence of landmasses or artificial structures within these specific coordinates highlights the dynamic and fluid nature of the outer delta, where maritime boundaries and underwater topography are the primary features of interest to researchers and hydrologists.
2 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 · Cat Island
USGS Topo · 1:62,500
1893 · Chandeleur
USGS Topo · 1:62,500
1950 · Dog Keys Pass
USGS Topo · 1:24,000
1950 · Ship Island
USGS Topo · 1:24,000
1951 · North Islands
USGS Topo · 1:24,000
1951 · Cat Island
USGS Topo · 1:24,000
1951 · Chandeleur Light
USGS Topo · 1:24,000
1953 · Mobile
USGS Topo · 1:250,000
1957 · Mobile
USGS Topo · 1:250,000
1957 · Breton Sound
USGS Topo · 1:250,000