Lake Pontchartrain dominates this maritime survey, illustrating the vast open waters of the basin north of New Orleans. The most prominent human-made feature is the Lake Pontchartrain Causeway, which cuts a nearly vertical path across the western edge of the sheet. At this scale, the map provides a precise record of this critical transportation corridor as it appeared in the early 21st century. Because this specific quadrangle covers a primarily aquatic area, it serves as a specialized reference for the navigation and infrastructure within this portion of the lake.
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This is the sole edition of this map. No revisions or reprints were ever made.
1891 · Spanish Fort
USGS Topo · 1:62,500
1892 · Chef Menteur
USGS Topo · 1:62,500
1935 · Slidell
USGS Topo · 1:62,500
1935 · Covington
USGS Topo · 1:62,500
1936 · South Point
USGS Topo · 1:31,680
1936 · Chef Menteur
USGS Topo · 1:62,500
1936 · Spanish Fort
USGS Topo · 1:62,500
1938 · Little Woods
USGS Topo · 1:31,680
1938 · Spanish Fort
USGS Topo · 1:31,680
1938 · Indian Beach
USGS Topo · 1:31,680