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2018 Map of Belle Isle

Name: 2018 Topographic Map of Belle Isle
Creator: U.S. Geological Survey
Published: 2018
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2018

About this map

Belle Isle stands as a prominent topographical feature in this coastal reach of St. Mary Parish, where the complex deltaic environment of the Gulf of Mexico meets the Atchafalaya basin drainage. The landscape is defined by an intricate network of waterways, including Wax Lake Outlet and New Pass, which facilitate the movement of sediment and water through this marshy terrain. To the north, Fivemile Oaks represents a rare point of named settlement amidst the shifting hydrologic patterns of Wax Lake and the surrounding bayous.

Notable landforms such as Negro Hammock and Leopard Point suggest the varied elevation of the local chenier or salt dome structures that rise above the wetlands. The map details the transition from inland freshwater flows like Bayou Chaffe and Bayou Blue to the tidal influence seen at Belle Isle Lake and Poverty Bayou. This 2018 survey provides an essential look at the modern shoreline and the established Public Land Survey System boundaries that divide these ecologically significant marshes.