|A strip of marsh separates MRGO (left) from the lake (right)|
|Location||Orleans / St. Bernard / St. Tammany parishes,
Louisiana / Hancock County, Mississippi, USA| |Primary
inflows||MRGO and Mississippi River| |Primary outflows||Gulf of
Mexico| |Catchment area||38,000 km²| |Basin countries||United
States| |Surface area||730 km²| |Average depth||3 m| Lake Borgne
is a lagoon in eastern Louisiana of the Gulf of Mexico. Due to
coastal erosion, it is no longer actually a lake but rather an
arm of the Gulf of Mexico. Its name comes from the French word
borgne, which means "one-eyed". The three large lakes, Maurepas,
Pontchartrain, and Borgne cover 55% of the Pontchartrain Basin.
Lakes Maurepas and Pontchartrain are separated by land bridges
of cypress swamp and fresh/intermediate marsh. A brackish marsh
land bridge and Lake St. Catherine separate Lake Pontchartrain
from Lake Borgne. The Rigolets and Chef Menteur Pass are the two
open water connections between Pontchartrain and Borgne. Due to
coastal erosion Borgn