2015 Map of Calumet Island

About this map

Timbalier Bay and the open waters of the Gulf of Mexico dominate this coastal survey of Louisiana's barrier island system. The map focuses on the fragile landforms of East Timbalier Island, Calumet Island, and Casse-tete Island, which serve as critical buffers for Lafourche Parish. These features represent the dynamic intersection of the state's deltaic coast and the encroaching sea, providing a high-resolution look at the shoreline geometry as it existed in the mid-2010s. The absence of roads or permanent structures reflects the purely maritime and ecological character of this remote territory, where township lines like t23s r21e and t24s r21e are projected across the wetlands and open water.