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.

G.I.W.W. Chandeleur Alt. Route
   Survey title Survey date
       Sheet Name    Stationing PDF XYZ SHP
   Baptiste Collette Bar - W.P. 1 06/22/2020
       GC_02_B2G    Sta. 626+00 B.C. to 130+00 A.R. PDF XYZ Shape
   Breton Sound 06/22/2020
       GC_03_B2G    130+00 to 270+00 PDF XYZ Shape
   Breton Sound 06/23/2020
       GC_04_B2G    270+00 to 410+00 PDF XYZ Shape
   Old M.R.G.O. Int. - W.P. 2 06/23/2020
       GC_05_B2G    410+00 to 550+00 PDF XYZ Shape
   Breton Sound 06/23/2020
       GC_06_B2G    550+00 to 695+00 PDF XYZ Shape
   Breton Sound 06/23/2020
       GC_07_B2G    695+00 to 835+00 PDF XYZ Shape
   Breton Sound 06/23/2020
       GC_08_B2G    835+00 to 1980+00 PDF XYZ Shape
   Breton Sound - W.P. 3 06/23/2020
       GC_09_B2G    980+00 to 1120+00 PDF XYZ Shape
   Chandeleur Sound 06/24/2020
       GC_10_B2G    1120+00 to 1260+00 PDF XYZ Shape
   Chandeleur Sound 06/24/2020
       GC_11_B2G    1260+00 to 1400+00 PDF XYZ Shape
   Chandeleur Sound 06/24/2020
       GC_12_B2G    1400+00 to 1545+00 PDF XYZ Shape
   Chandeleur Sound 06/24/2020
       GC_13_B2G    1545+00 to 1685+00 PDF XYZ Shape
   Chandeleur Sound 07/15/2020
       GC_14_B2G    1685+00 to 1825+00 PDF XYZ Shape
   Chandeleur Sound - W.P. 4 07/15/2020
       GC_15_B2G    1825+00 to 1970+00 PDF XYZ Shape
   Chandeleur Sound 07/15/2020
       GC_16_B2G    1970+00 to 2110+00 PDF XYZ Shape
   Chandeleur Sound 07/15/2020
       GC_17_B2G    2110+00 to 2250+00 PDF XYZ Shape
   Chandeleur Sound 07/15/2020
       GC_18_B2G    2250+00 to 2395+00 PDF XYZ Shape
   Chandeleur Sound 07/14/2020
       GC_19_B2G    2395+00 to 2535+00 PDF XYZ Shape
   Chandeleur Sound 07/14/2020
       GC_20_B2G    2535+00 to 2680+00 PDF XYZ Shape
   Chandeleur Sound 07/14/2020
       GC_21_B2G    2680+00 to 2820+00 PDF XYZ Shape
   Chandeleur Sound 07/14/2020
       GC_22_B2G    2820+00 to 2960+00 PDF XYZ Shape
   Gulfport Ship Channel - W.P. 5 07/14/2020
       GC_23_GSC    2960+00 to 3095+00 PDF XYZ Shape
   Gulfport Ship Channel - W.P. 6 03/10/2015
       GC_24_GSC    3095+00 to 3230+00 PDF XYZ Shape
   Gulfport Sound 03/10/2015
       GC_25_GPS    3230+00 to 3355+00 PDF XYZ Shape
   Gulfport Sound - W.P. 7 03/10/2015
       GC_26_GPS    3355+00 to 3480+00 PDF XYZ Shape