
Lake Pontchartrain dominates this aquatic landscape, providing a contemporary view of the intersection between three Louisiana parishes. The map primarily illustrates open water, with the boundaries of St. Tammany Parish, Tangipahoa Parish, and St. John the Baptist Parish converging in the lake's southwestern reaches. This survey is a critical resource for understanding the modern jurisdictional divisions within the Lake Pontchartrain Basin, where parish lines are established across the water. Small portions of land emerge at the extreme corners, including sections of t8s r9e, t8s r10e, and t8s r11e as defined by the Public Land Survey System, illustrating how historical township and range grids extend to the shoreline.
6 named features on this map. Tap any name to fly to it.
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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 · Bonnet Carre
USGS Topo · 1:62,500
1935 · Covington
USGS Topo · 1:62,500
1935 · Ponchatoula
USGS Topo · 1:62,500
1936 · Bonnet Carre
USGS Topo · 1:62,500
1936 · Spanish Fort
USGS Topo · 1:62,500
1939 · Ponchatoula
USGS Topo · 1:62,500
1939 · Covington
USGS Topo · 1:62,500
1950 · Covington
USGS Topo · 1:62,500
1951 · Ponchatoula
USGS Topo · 1:62,500