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2020 Map of Ponchatoula SE

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

USGS Topo · Published 2020

About this map

Pass Manchac and North Pass define the aqueous corridor of this Louisiana landscape, where the waters of Lake Pontchartrain meet a complex network of bayous and canals. The map details a saturated environment at the border of Tangipahoa Parish and St. John the Baptist Parish, where narrow land masses like Jones Island separate the major waterways.

Evidence of local history and early engineering is visible in features such as the Barbier Cem and specialized drainage routes like Schleiders Ditch, Mire Canal, and Cecils Canal. The hydrology is particularly intricate, showing how Middle Bayou and Stinking Bayou weave through the wetlands. This survey provides a precise look at the modern shoreline and the managed water systems that have historically supported the area's transition from open water to marshland.