2020 Map of Fourleague Bay

About this map

Point Au Fer Island and the intricate coastal wetlands of Terrebonne Parish dominate this modern hydrographic study. The landscape is defined by a complex network of tidal channels and basins where Fourleague Bay meets the Gulf waters of Atchafalaya Bay. This map documents a fragile coastal environment characterized by numerous named passages such as Mosquito Pass and Little Mosquito Pass, which facilitate the movement of water through the salt marshes. The nomenclature reflects a long history of local navigation and wildlife, seen in labels like Wildcat Bayou, Alligator Bayou, and Blue Hammock Bayou. Surveyed in the early twenty-first century, this record serves as a precise baseline for the shifting shoreline at Shell Point and the remote landmasses of Mosquito Island.