Survey data is referenced to Louisiana South State Plane Coordinates North American Datum 1983 with soundings referenced below Mean Low Gulf in U.S. Survey Feet.

Mississippi River Outlets at Venice
   Survey title Survey date
       Sheet Name    River mile PDF XYZ SHP
Baptiste Collette Bayou
   Jetties - Sh. 2 10/09/2017
       OV_02_BAP    MM 4.0 to 7.8 PDF XYZ Shape
   Bar - Sh. 3 10/09/2017
       OV_03_BAP    MM 7.8 to 11.5 PDF XYZ Shape
Tiger Pass
   Inland - Sh. 1 09/01/2016
       OV_01_TIG    MM 0.0 to 1.3 PDF XYZ Shape
   Inland - Sh. 2 09/01/2016
       OV_02_TIG    MM 1.3 to 4.1 PDF XYZ Shape
   Inland - Sh. 3 09/01/2016
       OV_03_TIG    MM 4.1 to 7.0 PDF XYZ Shape
   Inland - Sh. 4 09/01/2016
       OV_04_TIG    MM 7.0 to 9.6 PDF XYZ Shape
   Jetties - Sh. 5 09/01/2016
       OV_05_TIG    MM 9.6 to 12.0 PDF XYZ Shape
   Jetties/Bar - Sh. 6 09/13/2016
       OV_06_TIG    MM 12.0 to 14.7 PDF XYZ Shape