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2018 Map of Grand River

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

USGS Topo · Published 2018

About this map

The Atchafalaya Basin Floodway dominates this part of Louisiana, where a complex network of waterways defines the landscape at the border of St. Martin and Iberville parishes. The small settlement of Grand River sits at the confluence of the Upper Grand River and Bayou Maringouin, serving as a focal point in a territory largely comprised of wetlands and bayous.

Hydrological features like Graveyard Bayou, Bayou Pigeon, and Bayou Sorrel illustrate the intricate drainage patterns of the basin. The map reveals the isolation of this watery environment, where terrestrial infrastructure is nearly absent except for Bayou Sorrell Rd and the township lines of the Public Land Survey System. Navigable channels such as Landing Bayou, Schooner Bayou, and Jones Bayou highlight the historical and modern importance of water-based travel in these deep basin lowlands.