The selected location is:

The elevation is 0 m ( 0 ft )
The gradient is: 0.0 percent
There is no aspect direction.
The local roughness is: 0.0 or flat
The location as decimal degrees (X,Y;Z) = -89.1908, 29.2780; 0 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. Christie Pond; Louisiana: Plaquemines Parish -89.1908, 29.2780 at a distance of 5 m
2. Benedict Bayou; Louisiana: Plaquemines Parish -89.1953, 29.2791 at a distance of 458 m
3. Benedict Outside Pond; Louisiana: Plaquemines Parish -89.1894, 29.2721 at a distance of 665 m
4. Thomassin Pond; Louisiana: Plaquemines Parish -89.1981, 29.2821 at a distance of 847 m
5. Delta Bend; Louisiana: Plaquemines Parish -89.1831, 29.2716 at a distance of 1027 m
6. Dune Pond; Louisiana: Plaquemines Parish -89.2018, 29.2755 at a distance of 1099 m
7. Wiltz Pass; Louisiana: Plaquemines Parish -89.1858, 29.2874 at a distance of 1150 m
8. Redhead Outside Pond; Louisiana: Plaquemines Parish -89.1943, 29.2680 at a distance of 1156 m
9. Ronde Pond; Louisiana: Plaquemines Parish -89.2023, 29.2721 at a distance of 1290 m
10. Ronde Bayou; Louisiana: Plaquemines Parish -89.1998, 29.2677 at a distance of 1433 m

The 7.5 minute series topographic maps for that area