1935 Map of Calumet Island
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1935 Map of Calumet Island

USGS Topo · Published 1935

About this map

Timbalier Bay and the surrounding barrier islands are captured here in 1935, during an era of transition for the Louisiana coastline. This survey, based on aerial photographs from the U.S. Army Air Corps, illustrates the intricate network of marsh and open water that defined the boundary between Lafourche and Terrebonne parishes. A key navigational landmark, the Timbalier L. H. lighthouse, stands near Grand Pass Timbalier, marking the critical threshold between the bay and the open Gulf of Mexico. Farther inland, the Casse-Tete Islands and Calumet Island emerge from the shallow wetlands. The map provides a unique look at the coastal geography of the mid-1930s, documenting the original extent of landforms like East Timbalier Island before decades of significant shoreline migration and erosion altered the landscape.


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Map Details

Date Portrayed1935
Date Published1935
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:31,680
Physical Dimensions17.9 x 20.9 inches

Editions of this 1935 Calumet Island Map

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


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Source Details

CopyrightPublic Domain