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2012 Map of Three Mile Bay

Name: 2012 Topographic Map of Three Mile Bay
Creator: U.S. Geological Survey
Published: 2012
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2012

About this map

Three Mile Bay and the surrounding marshlands of Saint Bernard Parish reveal a complex coastal landscape defined by shifting wetlands and tidal passages. This 2012 survey by the U.S. Geological Survey documents a labyrinth of waterways, including the broad expanse of Boudeau Bay and more secluded inlets like Oyster Bayou and Turkey Bayou. The map illustrates the fragile nature of the Louisiana coastline, where small landmasses such as Raccoon Island, Little Raccoon Island, and Mink Island are all that remain of more continuous marsh.

The presence of family and locally named landmarks like Northwest Jack Williams Bay and Negro Point provides insight into the naming conventions and navigational history of the region's fishing and trapping communities. While mostly devoid of modern infrastructure, the detailed hydrography of Johnson Bayou and Bayou Creque serves as a record of the intricate bayou systems that define this part of the Mississippi River Delta before the continued effects of coastal erosion.