The selected location is:

The elevation is 4 m ( 15 ft )
The gradient is: 1.6 percent
The aspect direction is: 172.1 degrees or S
The local roughness is: 1.6 or average
The location as decimal degrees (X,Y;Z) = -90.0170, 29.7749; 4 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. Bertrandville; Louisiana: Plaquemines Parish -90.0170, 29.7749, ( 8 ft ) at a distance of 3 m
2. Greenwood; Louisiana: Plaquemines Parish -90.0137, 29.7816, ( 14 ft ) at a distance of 810 m
3. Saint John the Baptist Church; Louisiana: Plaquemines Parish -90.0176, 29.7671 at a distance of 865 m
4. Woodlawn School; Louisiana: Plaquemines Parish -90.0173, 29.7641, ( 9 ft ) at a distance of 1196 m
5. Woodlawn Government Building; Louisiana: Jefferson Parish -90.0173, 29.7641 at a distance of 1196 m
6. Oakville; Louisiana: Plaquemines Parish -90.0265, 29.7830, ( 3 ft ) at a distance of 1283 m
7. Sarah; Louisiana: Plaquemines Parish -90.0301, 29.7702, ( 4 ft ) at a distance of 1367 m
8. Linwood Revetment; Louisiana: Plaquemines Parish -90.0112, 29.7871 at a distance of 1466 m
9. Woodlawn; Louisiana: Plaquemines Parish -90.0182, 29.7613, ( 7 ft ) at a distance of 1511 m
10. Joe Brown Canal; Louisiana: Plaquemines Parish -90.0012, 29.7699 at a distance of 1628 m

The 7.5 minute series topographic maps for that area