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2020 Map of Alligator Point

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

USGS Topo · Published 2020

About this map

New Orleans marshlands and estuarine waters define this coastal landscape where the waters of Lake Borgne meet the intricate bayou systems of the outer parish. The geography is dominated by the shifting interface of land and sea, characterized by prominent landmarks like Alligator Point and Point Cataline. These coastal features serve as critical navigational markers along the Gulf Intracoastal Waterway, which provides a deep-water channel through the wetlands.

A complex network of tidal passages, including Unknown Pass and Deedie Bayou, connects larger bodies like Lake Catherine and Lake Saint Catherine to the open waters of the sound. The boundary between Orleans Parish and St. Bernard Parish cuts through these wetlands, illustrating the administrative divisions of this low-lying territory. From Truloix Point to the sweep of Alligator Bend, the map details a region where traditional land use and environmental preservation coexist within the limits of the city's coastal reach.