USGS
 Environmental Geochemistry and Sediment Quality in Lake Pontchartrain

Guide to the AREA_CODE Field

Below is a map of the areas used in the AREA_CODE field, along with a table showing both the codes and the descriptions. You may download a file delineating these areas. The files in this zipped file are in MapInfo's export format (MID/MIF pair).

acmap.jpg (151954 bytes)

AREA_CODE AREA_DESCRIPTION
BLaBr Bayou LaBranche
BretS Breton Sound
BTrep Bayou Trepagnier
CMent Chef Menteur
EngCa Engineers Canal
ICW Intra Coastal Waterway
IHNC Inner Harbor Navigation Canal
LBorg Lake Borgne
LMaur Lake Maurepas
LP-BC Lake Pontchartrain, Bonnet Carré region
LP-CE Lake Pontchartrain, central region east of Causeway
LP-CW Lake Pontchartrain, central region west of Causeway
LP-NO Lake Pontchartrain, New Oreleans region
LP-NS Lake Pontchartrain, north shore region
LP-PH Lake Pontchartrain, Pointe aux Herbes region
LP-RG Lake Pontchartrain, Rigolets region
LP-WS Lake Pontchartrain, west shore region
MissB Mississippi Bayou
MRGO Mississippi River Gulf Outlet
Rigol Rigolets

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