1:24,000 scale Surface Geology

PDF maps are free to download as well as shapefiles. Please note those shapefiles denoted with an asterisk (*) indicate files with no metadata. Please contact Mr. Hampton Peele (hampton@lsu.edu) for this information.

To obtain a printed copy of the 1:24,000 scale (7.5 minute) maps please click ordering information. Please allow 2-4 weeks for delivery. Price: $55 each.

Descriptive pamphlets are included for recent maps. These are denoted with "Pam". Click on "Pam" to download the file.

Geospatial PDF files are available from the Avenza Map Store for free. Note: These maps are created with Avenza MaPublisher and must be viewed with their proprietary software (it is free for download and minimal use).

Disclaimer: "The views and conclusions contained in these documents/data are those of the authors and should not be interpreted as necessarily representing the official policies, either expressed or implied, of the U.S. Government or the state of Louisiana.

These maps/data have been carefully prepared from the best existing sources available at the time of preparation. However, the Louisiana Geological Survey and Louisiana State University do not assume responsibility or liability for any reliance thereon.  This information is provided with the understanding that it is not guaranteed to be correct or complete, and conclusions drawn from such data are the sole responsibility of the user. These regional geologic quadrangles are intended for use at the scale of 1:24,000.  A detailed on-the-ground survey and analysis of a specific site may differ from these maps."

Ordering Information:

Please use the map below to determine the area in which you are interested. Then scroll down to the 100k map name chosen to view available .pdf/.shp files.

100k Map image



Atchafalaya Bay


Black Bay









Mississippi River Delta

Monroe North

Monroe South


Morgan City




New Orleans

New Roads



Port Arthur

Shreveport North

Shreveport South



Terrebonne Bay

Ville Platte



White Lake