The halfway point is Tilton, NH.
Contoocook, NH
Nashua, NH is midway between Waltham MA and Greenfield NH
The halfway point between New Hampshire (NH) and Texas (TX) is Salt River, KY.
Mount Washington.
Just east of Lebanon, NH
Hazeltine Corners, Pennsylvania.
Newport, NH
halfway point between portsmouth nh and palm beach fl
Leicester, MA.
Grays Corner, ME.
Four Corners, NJ is the halfway point.