1947 Map of Bay Ronquille
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1947 Map of Bay Ronquille

USGS Topo · Published 1947

About this map

The Grande Ecaille Oil Field stands as a primary industrial landmark in this coastal Louisiana landscape, situated within the marshlands of the Lake Grande Ecaille basin. The area is defined by a dense network of estuarine waters, where Cat Bay and Bay Ronquille transition into the open Gulf of Mexico. Surveyed from aerial photography by the Air Corps, the map depicts the complex interface of land and water before significant coastal erosion altered the shoreline. The Plaquemines-Jefferson Parish boundary cuts through these wetlands, crossing the western edge of Grand Terre and the tidal opening of Quatre Bayou Pass. Notable coastal features include the narrow spit of Pt Cheniere Ronquille and interior waterways like Bayou Robinson and Bayou La Mer, illustrating the natural drainage patterns critical to the local shrimp and oil industries of the mid-twentieth century.


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Map Details

Date Portrayed1947
Date Published1947
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:31,680
Physical Dimensions16.9 x 20.8 inches

Editions of this 1947 Bay Ronquille Map

This is the sole edition of this map. No revisions or reprints were ever made.


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Source Details

CopyrightPublic Domain