2025 Map of Grand Gosier Islands
USGS Topo · Published 2025About this map
The Chandeleur Islands chain marks a critical maritime boundary where the sheltered waters of Breton Sound meet the open Gulf of America. This coastal survey highlights a landscape defined by isolation and shifting sands, focused on the Grand Gosier Islands and the solitary Gosier Island to the southwest. The absence of contour data on this sheet reflects the extreme low-lying nature of these barrier features, which serve as the first line of defense for the Louisiana mainland against the gulf.
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Map Details
Editions of this 2025 Grand Gosier Islands Map
This is the sole edition of this map. No revisions or reprints were ever made.
Other maps of this area
1950 · Breton Islands
USGS Topo · 1:24,000
1951 · Grand Gosier Islands
USGS Topo · 1:24,000
1953 · Breton Island
USGS Topo · 1:62,500
1957 · Breton Sound
USGS Topo · 1:250,000
1958 · Breton Island
USGS Topo · 1:62,500
1961 · Breton Sound
USGS Topo · 1:250,000
1971 · Breton Islands
USGS Topo · 1:24,000
1982 · North Islands
USGS Topo · 1:100,000
1983 · Black Bay
USGS Topo · 1:100,000
1983 · Mississippi River Delta
USGS Topo · 1:100,000