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1953 Map of Grand Bayou Du Large

Name: 1953 Topographic Map of Grand Bayou Du Large
Creator: U.S. Geological Survey
Published: 1981
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1981

About this map

The intricate coastal marshlands of Terrebonne Parish are defined here by a sprawling network of tidal waterways and brackish basins. Grand Bayou Du Large and Grand Caillou Bayou serve as the primary conduits through the wetlands, connecting inland bodies like Caillou Lake and King Lake to the open waters of Caillou Bay. The landscape is a labyrinth of smaller channels such as Fish Bayou, Redfish Bayou, and Turtle Bayou, reflecting the dynamic hydrology of the Louisiana coast in the mid-20th century.

Industrial activity in this remote environment is evidenced by the Dog Lake and Gas Field in the east and an Oil Well near Jack Stout Bay, marking the era's expanding energy infrastructure. Navigational aids, including a Light positioned where Grand Bayou Du Large meets the bay, highlight the importance of these waters for maritime transit. The map documents the fragile shoreline and bayou patterns before late-century coastal changes, providing a clear view of landmarks like Mile Pass and Moncleuse Bay.