
The coastal marshes of Louisiana are defined by the transition from terrestrial bayous to open waters in this 2024 survey. The border between Terrebonne Parish and Lafourche Parish runs through a landscape dominated by tidal basins, where the interior Old Lady Lake and Bayou de la Valle meet the expansive waters of Timbalier Bay. This environment is characterized by shifting barrier features and low-lying landforms such as the Fornation Islands and Bull Islands.
20 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.
1894 · Timbalier
USGS Topo · 1:62,500
1894 · Lake Felicity
USGS Topo · 1:62,500
1894 · Dulac
USGS Topo · 1:62,500
1935 · Bourbeux
USGS Topo · 1:31,680
1935 · Timbalier Island
USGS Topo · 1:31,680
1935 · Bay Courant
USGS Topo · 1:31,680
1935 · Pelican Pass
USGS Topo · 1:31,680
1935 · Calumet Island
USGS Topo · 1:31,680
1939 · Lake Felicity
USGS Topo · 1:62,500
1941 · Lake Felicity
USGS Topo · 1:62,500