USGS
 Environmental Geochemistry and Sediment Quality in Lake Pontchartrain

Guide to the AREA_CD_SQ Field

Below is a map of the areas used in the AREA_CD_SQ field. You may download a file delineating these areas. The files in this zipped file are in MapInfo's export format (MID/MIF pair).

sqmap2.jpg (153355 bytes)

arrow2l.jpg (1149 bytes) Back to Data Sources and Locations
arrow2l.jpg (1149 bytes) Back to Analytical Methods and Quality Control
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