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2020 Map of Martello Castle

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

USGS Topo · Published 2020

About this map

Martello Castle stands as a primary landmark in this coastal region of Louisiana, positioned near the vast waters of Lake Borgne. The landscape is defined by an intricate network of waterways, including the prominent Mississippi River-Gulf Outlet Canal, which cuts through the marshlands of St. Bernard Parish and Orleans Parish. Smaller tidal channels like Bayou Bienvenue, Bayou Dupre, and Terre-Beau Bayou create a complex hydrologic pattern characteristic of the outer New Orleans periphery.

Modern infrastructure is concentrated along the southern edge of the sheet, where E La 46 and Sylvia Blvd provide access to the fringes of local development. The map details a shifting environment where named features like Shell Beach Bayou and Camp Bayou indicate a region historically utilized for transit and coastal navigation. This survey provides a precise look at the drainage and shoreline of the Mississippi delta region before recent environmental shifts further altered the wetland interface.