1973 Map of Bay Ronquille, 1991 Print
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1973 Map of Bay Ronquille

USGS Topo · Published 1991

About this map

Lake Grande Ecaille and the complex salt marshes of Plaquemines Parish dominate this 1970s orthophotomap, which uses high-altitude aerial photography to document a landscape of rapid environmental change. This coastal zone, noted as a subsidence area in the survey notes, reveals the extensive infrastructure of the Louisiana energy industry. Numerous Platforms and a network of pipelines, including a prominent Elevated Pipeline near the northern shore of the lake, crisscross the wetlands.


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Map Details

Date Portrayed1973
Date Published1991
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions21.9 x 27 inches

Editions of this 1973 Bay Ronquille Map


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Source Details

CopyrightPublic Domain