2024 Map of Grand Bayou du Large

About this map

Grand Bayou du Large and Bayou Grand Caillou anchor this coastal landscape in southern Terrebonne Parish, where the intricate hydrology of the Louisiana marshland is on full display. The area is defined by a dense network of tidal channels and basins, including Caillou Lake and Bay Voisin, which create a fragmented coastline vulnerable to the open waters of Caillou Bay. This survey highlights the complex relationship between the interior brackish lakes and the larger bayous that have historically served as primary transportation corridors through the wetlands. Smaller features like Turtle Bayou, Fish Bayou, and Redfish Bayou weave through the marsh, illustrating the delicate, ever-shifting boundaries between water and land. The absence of road infrastructure emphasizes the aquatic nature of this region, where life and movement revolve around the bayou systems.