2015 Map of Western Isles Dernieres

About this map

Isles Dernieres and the barrier islands of Terrebonne Co Louisiana appear in this coastal survey, highlighting the shifting geography of the barrier chain. The landscape is dominated by the narrow stretch of Raccoon Island and its western terminus at Raccoon Point, separating the open Gulf of Mexico from the interior waters of Caillou Bay. This map documents the fragmented state of the islands in the early 21st century, illustrating how natural passes like Coupe Colin break the land into distinct sections. The survey includes Public Land Survey System notations such as t24s r15e, which provide a formal grid for these remote maritime features, essential for understanding land loss and conservation efforts in the region.