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2020 Map of Morgan City SW

Name: 2020 Topographic Map of Morgan City SW
Creator: U.S. Geological Survey
Published: 2020
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2020

About this map

Lower Atchafalaya River watercourses dominate this coastal landscape, where the shifting boundaries of St. Mary Parish and Terrebonne Parish meet. This survey captures a complex network of wetlands and islands, including the substantial Avoca Island and Bateman Island at the northern edge. The area is defined by its labyrinthine bayous, such as Bayou Shaffer, Bayou Penchant, and Honey Bayou, which carve through the marshland to feed into larger bodies like Sweetbay Lake and Lake Gaseba.

Evidence of local navigation and land management is visible through features like the Avoca Island Cutoff, Burke Canal, and the established Levee Rd. Remote points such as Sword Point and East Bend mark the transition between open water and the dense swamp interior. For researchers of Louisiana's hydrologic history, the map provides an exacting look at the intricate drainage patterns of the Big Horn Bayou, Little Horn Bayou, and Deer Island Bayou systems.