The selected location is:

The elevation is 33 m ( 108 ft )
The gradient is: 10.3 percent
The aspect direction is: 264.5 degrees or W
The local roughness is: 5.3 or average
The location as decimal degrees (X,Y;Z) = -73.8490, 41.1004; 33 m

The state and county are New York: Westchester County 36119
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. Rockefeller Brook mouth; New York: Westchester Co. -73.8490, 41.1004 at a distance of 1 m
2. Sleepy Hollow mouth; New York: Westchester Co. -73.8485, 41.0995 at a distance of 109 m
3. Gory Brook mouth; New York: Westchester Co. -73.8540, 41.1043 at a distance of 602 m
4. Sleepy Hollow head; -73.8493, 41.0937 at a distance of 745 m
5. Cedar Hill; New York: Westchester Co. -73.8540, 41.0929 at a distance of 933 m
6. Sleepy Hollow Cemetery; New York: Westchester Co. -73.8599, 41.0970 at a distance of 989 m
7. Douglas Park; New York: Westchester Co. -73.8582, 41.0937 at a distance of 1072 m
8. New Croton Aqueduct; New York: Westchester Co. -73.8432, 41.0904 at a distance of 1214 m
9. Kykuit Hill; New York: Westchester Co. -73.8446, 41.0895 at a distance of 1266 m
10. Pocantico Hills; New York: Westchester Co. -73.8360, 41.0945 at a distance of 1275 m

The 7.5 minute series topographic maps for that area