City of Northampton HomeCalendarDepartmentsCity ServicesAbout Northampton

Northampton Coordinate System


The Northampton Coordinate System (NCS) is an old, local horizontal control datum no longer in use. It is convertable to Mass State Plane (MSP) NAD27 as follows:

NCS Northing + 469,700 = MSP NAD27
NCS Easting + 264,000 = MSP NAD27

MSP NAD27 must then be converted to MSP NAD83 using software like NADCON/CORPSCON, available from National Geodetic Survey. NGVD29 elevations can also be converted to NAVD88 using the same software.

Contact the Engineering Dept. for more information.