The selected location is:

The elevation is 45 m ( 148 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) = -71.4153, 42.4973; 45 m

The state and county are Massachusetts: Middlesex County 25017
The HUC is Concord 01070005; 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. Assabet Plaza; Massachusetts: Middlesex Co. -71.4153, 42.4973 at a distance of 1 m
2. Acton Mall; Massachusetts: Middlesex Co. -71.4170, 42.4954 at a distance of 254 m
3. Nagog Brook mouth; Massachusetts: Middlesex Co. -71.4187, 42.4987 at a distance of 320 m
4. Myers Hill; Massachusetts: Middlesex Co. -71.4176, 42.5062, ( 310 ft ) at a distance of 1006 m
5. Strawberry Hill; Massachusetts: Middlesex Co. -71.4023, 42.4945, ( 335 ft ) at a distance of 1113 m
6. Acton Shopping Center; Massachusetts: Middlesex Co. -71.4281, 42.4901 at a distance of 1322 m
7. Nashoba Brook Reservoir; Massachusetts: Middlesex Co. -71.4045, 42.5101 at a distance of 1675 m
8. Bellows Farm Mill Dam Number 1; Massachusetts: Middlesex Co. -71.4045, 42.5101 at a distance of 1675 m
9. North Acton; Massachusetts: Middlesex Co. -71.4120, 42.5126, ( 171 ft ) at a distance of 1720 m
10. Acton; Massachusetts: Middlesex Co. -71.4328, 42.4851, ( 260 ft ) at a distance of 1977 m

The 7.5 minute series topographic maps for that area