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2015 Map of Black Bay North

Name: 2015 Topographic Map of Black Bay North
Creator: U.S. Geological Survey
Published: 2015
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2015

About this map

Gallega Island and Grise Bourbe Island anchor the coastal marshlands in this coastal stretch where the Gulf of Mexico meets the labyrinthine waterways of southern Louisiana. The landscape is defined by an intricate network of saline lakes and bayous, including the expansive Lake Machias and Lake Fortuna to the east, and the namesake Black Bay to the south. This environment reflects the fluid transition between land and sea, where landforms like Grand Coquille Point and Grassy Point are essentially defined by the water surrounding them.

Following the winding course of Bayou Terre Aux Boeufs, the map delineates the boundary between St. Bernard Parish and Plaquemines Parish. This historical water route has long served as a corridor through the wetlands, connecting internal basins like Lake Calebasse and Pumpkin Bay to the open waters. Smaller features like Jessies Island and Dead Duck Pass offer specific points of reference for those navigating or studying the evolving shoreline of the Mississippi River Delta region.