The selected location is:

The elevation is 17 m ( 55 ft )
The gradient is: 5.7 percent
The aspect direction is: 333.5 degrees or NW
The local roughness is: 3.6 or average
The location as decimal degrees (X,Y;Z) = -73.9085, 41.0382; 17 m

The state and county are New York: Rockland County 36087
The HUC is Lower Hudson 02030101; Place point in HUC
The Omernik ecoregion is Northeastern Coastal Zone (more typical) 59
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Nearby named places (in order by distance)

1. Sparkill Creek mouth; New Jersey: Bergen Co. -73.9085, 41.0382 at a distance of 2 m
2. Crumkill Creek head; -73.9079, 41.0382 at a distance of 52 m
3. Sparkill Creek mouth; New York: Rockland Co. -73.9074, 41.0384 at a distance of 97 m
4. Tallman Mountain; New York: Rockland Co. -73.9143, 41.0357 at a distance of 560 m
5. Piermont; New York: Rockland Co. -73.9182, 41.0420 at a distance of 917 m
6. Piermont Pier; New York: Rockland Co. -73.8990, 41.0429, ( 5 ft ) at a distance of 955 m
7. Sparkill School; New York: Rockland Co. -73.9182, 41.0437 at a distance of 1017 m
8. Crumkill Creek mouth; New York: Rockland Co. -73.9035, 41.0279 at a distance of 1220 m
9. Tallman Mountain State Park; New York: Rockland Co. -73.9099, 41.0259 at a distance of 1372 m
10. Rockland Country Club; New York: Rockland Co. -73.9177, 41.0251 at a distance of 1647 m

The 7.5 minute series topographic maps for that area