The selected location is:

The elevation is 4 m ( 13 ft )
The gradient is: 0.8 percent
The aspect direction is: 137.6 degrees or SE
The local roughness is: 0.6 or slight
The location as decimal degrees (X,Y;Z) = -90.3232, 29.9469; 4 m

The state and county are Louisiana: St. Charles Parish 22089
The HUC is Lower Mississippi-New Orleans 08090100; Place point in HUC
The Omernik ecoregion is Mississippi Alluvial Plain (more typical) 73
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Nearby named places (in order by distance)

1. Saint Rose; Louisiana: St. Charles Parish -90.3232, 29.9469, ( 10 ft ) at a distance of 2 m
2. Fifth African Baptist Church; Louisiana: St. Charles Parish -90.3226, 29.9438, ( 12 ft ) at a distance of 348 m
3. Mount Zion Baptist Church; Louisiana: St. Charles Parish -90.3215, 29.9433, ( 12 ft ) at a distance of 432 m
4. Saint Rose Post Office; Louisiana: St. Charles Parish -90.3207, 29.9433 at a distance of 467 m
5. First Baptist Church; Louisiana: St. Charles Parish -90.3209, 29.9538, ( 7 ft ) at a distance of 797 m
6. Saint Rose Landing; Louisiana: St. Charles Parish -90.3251, 29.9385 at a distance of 948 m
7. Corso; Louisiana: St. Charles Parish -90.3273, 29.9391, ( 10 ft ) at a distance of 950 m
8. Jefferson Memorial Gardens; Louisiana: St. Charles Parish -90.3151, 29.9519, ( 10 ft ) at a distance of 960 m
9. Loquer (historical); Louisiana: St. Charles Parish -90.3229, 29.9571, ( 9 ft ) at a distance of 1132 m
10. North Saint Rose Gas Field; Louisiana: St. Charles Parish -90.3348, 29.9524 at a distance of 1274 m

The 7.5 minute series topographic maps for that area