2018 Map of Grand Chenier

About this map

Grand Chenier Ridge and its neighboring elevated formations dominate this coastal landscape, where the settlement of Grand Chenier follows the winding course of the Mermentau River. These cheniers—ancient beach ridges of sand and shell—serve as the only high ground amidst a complex network of wetlands including Upper Mud Lake and Little Pecan Lake. The map illustrates a distinctive human geography where roads like Little Chenier Rd and Parish Rd 216 are constrained by the surrounding marsh, strictly adhering to the narrow ridges. Modern maritime infrastructure is evident in the Mermentau River Navigational Channel, reflecting the region's reliance on waterborne transport and drainage. From Pumpkin Ridge to Indian Point Island, the interplay between tidal bayous like Marseillaise Bayou and the ridges defines the limits of habitation in this Cameron Parish environment.