2015 Map of Cat Island Pass

About this map

Timbalier Island and Wine Island stand as coastal sentinels in this 2015 maritime survey of the Louisiana coast. The map focuses on the transition between the open Gulf of Mexico and the interior waters of Terrebonne Bay, connected by the deep-water corridor of Cat Island Pass. This era of documentation reveals the fragmented nature of the barrier island system within Terrebonne Parish, where narrow ribbons of land serve as the primary buffer for the mainland marshes. The sparse terrestrial features emphasize the dynamic and shifting coastline characteristic of this region, providing a specific record of island geometry and channel positioning before further environmental changes.