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Louisiana geologic map data

A GIS database of geologic units and structural features in Louisiana, with lithology, age, data structure, and format written and arranged just like the other states.


Show in a web browser window:

Show in Google Earth or other KML viewer:

lageol.kml (Uncompressed, 13.2M)

lageol.kmz (Compressed, 4.6M)

List geologic units by state or county

Show in your GIS using OGC web services: (WMS, version 1.3.0) (WFS, version 1.1.0)

Use lithology_symbology.lyr ArcGIS layer file to symbolize lithology when using WFS


Content Download Format
Geological attributes CSV format
Geologic units Shapefile, polygon
Faults Shapefile, arcs
Colors for lithology ArcMap Style [Instructions]



Outline - Questions & Answers - Plain text - XML
Legend indicating the meaning of colors on the interactive map



United States Geological Survey, 1998, Digital Overlay of the Geologic Map of Louisiana: U.S. Geological Survey, Biological Resources Division, National Wetlands Research Center, Product Id USGS-NWRC 1984-02-0001,

Related topics

Geologic units in Louisiana