2025 Map of Big Constance Lake

About this map

Little Constance Lake sits at the northern edge of this coastal reach, feeding into a network of tidal waterways within the marshy lowlands of Louisiana. The landscape is defined by the winding paths of Little Constance Bayou and Constance Bayou, which trace a transition from inland waters toward the expansive Gulf of America to the south. This coastal topography highlights the intricate drainage patterns of the region, where Dyson Bayou joins the larger bayou system. The absence of roads or permanent structures reflects the shifting, water-dominated nature of this shoreline environment, as captured in this recent survey from the U.S. Geological Survey.