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1956 Map of Lake La Graisse

Name: 1956 Topographic Map of Lake La Graisse
Creator: U.S. Geological Survey
Published: 1986
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1986

About this map

Terrebonne Bay dominates the southern half of this coastal survey, where the Louisiana shoreline dissolves into an intricate network of marshes, lakes, and tidal passes. During the mid-1950s, this area was a primary site for resource extraction, evidenced by the presence of a Platform and an Oil Well situated amidst the shallow waters. The map details the complex hydrography of the region, including the large basins of Lake La Graisse and Lake Saint Jean Baptiste.

Navigational landmarks such as Point Meshe and the narrow Seabreeze Pass provide critical orientation points in a landscape where water and land are nearly indistinguishable. This survey, compiled from aerial photography and planetable measurements, serves as a precise record of the Terrebonne Parish coast before subsequent decades of erosion and subsidence altered the reach of Lake Barre and Bay Chaland.