1971 Map of Main Pass, 1974 Print
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1971 Map of Main Pass

USGS Topo · Published 1974

About this map

Delta National Wildlife Refuge dominates this coastal landscape, protecting a complex network of wetlands and open water at the mouth of the Mississippi River delta. The 1971 survey illustrates the precarious balance between natural conservation and industrial extraction, with the Rowere Pass Oil and Gas Field and Delta Dock Oil Field situated directly alongside sensitive marshes. These industrial sites are marked by numerous sludge pits and oil wells, indicating the intensive energy production occurring within the delta during the early 1970s.


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Map Details

Date Portrayed1971
Date Published1974
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22.9 x 26.8 inches

Editions of this 1971 Main Pass Map


Historical Maps of Plaquemines Parish Through Time

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Source Details

CopyrightPublic Domain