Japan Island and the neighboring waters of Japan Outside Pond occupy a precarious position along the edge of the Mississippi River Delta. This 2024 survey documents the fragile geography of Plaquemines Parish as it transitions into the open Gulf of Mexico. The area is characterized by shifting barrier islands and coastal wetlands, where small landmasses like Japan Island serve as critical markers in an ever-changing maritime environment. For researchers of coastal Louisiana, this map provides a precise record of the contemporary shoreline and hydrological boundaries, showing the current extent of these named features before further environmental transformation.
3 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 · East Delta
USGS Topo · 1:62,500
1947 · Pass A Loutre West
USGS Topo · 1:31,680
1947 · Main Pass
USGS Topo · 1:31,680
1947 · Pass A Loutre East
USGS Topo · 1:31,680
1950 · Breton Islands
USGS Topo · 1:24,000
1953 · Breton Island
USGS Topo · 1:62,500
1954 · Pass A Loutre East
USGS Topo · 1:31,680
1954 · Pass A Loutre West
USGS Topo · 1:31,680
1954 · East Delta
USGS Topo · 1:62,500
1957 · Breton Sound
USGS Topo · 1:250,000