
Southwest Pass carves a critical corridor through the Mississippi River Delta in this orthophotomap, showing the fragile landmasses of West Bay and Mud Bay in the early 1970s. The landscape is defined by industrial extraction and maritime navigation, with an expansive Oil Field and numerous platforms positioned offshore in the Gulf of Mexico. Along the thin strip of land bordering the pass, infrastructure like a Helicopter Pad, Sludge Pit, and several towers indicate the intensity of local oil and gas operations. This survey captures the precarious nature of the deltaic environment, where features like Burrwood Bayou and the Sanitary Canal provide internal drainage amidst a network of engineering works, including the West Jetty and multiple sections of the East Jetty that maintain the shipping channel.
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This is the sole edition of this map. No revisions or reprints were ever made.
1893 · West Delta
USGS Topo · 1:62,500
1946 · Pass Du Bois
USGS Topo · 1:31,680
1946 · Mudpan Bayou
USGS Topo · 1:31,680
1947 · Southwest Pass
USGS Topo · 1:31,680
1949 · Burrwood
USGS Topo · 1:31,680
1952 · Southwest Pass
USGS Topo · 1:62,500
1953 · West Delta
USGS Topo · 1:62,500
1954 · Pass Du Bois
USGS Topo · 1:31,680
1954 · Southwest Pass
USGS Topo · 1:31,680
1954 · Mudpan Bayou
USGS Topo · 1:31,680