The selected location is:

The elevation is 1 m ( 4 ft )
The gradient is: 1.9 percent
The aspect direction is: 45.9 degrees or NE
The local roughness is: 1.0 or average
The location as decimal degrees (X,Y;Z) = -89.5237, 29.3691; 1 m

The state and county are Louisiana: Plaquemines Parish 22075
The HUC is Lower Mississippi-New Orleans 08090100; Place point in HUC
The Omernik ecoregion is Mississippi Alluvial Plain (less typical) 73
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Nearby named places (in order by distance)

1. Cuselich Canal; Louisiana: Plaquemines Parish -89.5237, 29.3691 at a distance of 4 m
2. Mingle Canal; Louisiana: Plaquemines Parish -89.5204, 29.3680 at a distance of 345 m
3. Quarantine (historical); Louisiana: Plaquemines Parish -89.5245, 29.3660, ( 1 ft ) at a distance of 349 m
4. Tortillon, Bayou; Louisiana: Plaquemines Parish -89.5243, 29.3738 at a distance of 526 m
5. Ostrica; Louisiana: Plaquemines Parish -89.5293, 29.3683, ( 2 ft ) at a distance of 547 m
6. Cazezu Canal; Louisiana: Plaquemines Parish -89.5187, 29.3666 at a distance of 561 m
7. Ostrica Lock; Louisiana: Plaquemines Parish -89.5298, 29.3677 at a distance of 608 m
8. Tortillon, Bayou mouth; Louisiana: Plaquemines Parish -89.5112, 29.3752 at a distance of 1393 m
9. Buras Revetment; Louisiana: Plaquemines Parish -89.5348, 29.3605 at a distance of 1435 m
10. Tortillon, Bayou head; -89.5265, 29.3835 at a distance of 1620 m

The 7.5 minute series topographic maps for that area