1994 Map of Grand Bayou Du Large

About this map

The intricate marshlands of Terrebonne Parish are defined here by a vast network of coastal waterways and petroleum industry activity at the close of the 20th century. Dominated by the Grand Bayou Du Large and the expansive Caillou Lake, the landscape is a complex pattern of salt marshes, bays, and winding channels like Voisin Bayou and Turtle Bayou. This area represents the fragile transition where the Louisiana mainland dissolves into the Gulf, with named surveyor points such as Storm, Grand, and Mary Ann providing the few fixed navigational references in the wetlands.