Cranford Fundamental Bench Mark   

Location
Grid reference: SP 9184 7878.
Landranger 141: Kettering and Corby.
GPS network passive station: H1SP9178.
Waypoint: FM0533.

Neighbouring Flush Brackets

1869	Grafton Underwood 1.22km to the north.
1850	Cranford St Andrew 1.25km to the south.
1870	Grafton Underwood, The Laurels 1.73km to the north.
1849	Cranford St John 1.89km to the south.
1848	Butlin's Sidings Bridge 2.43km to the south.

The nearest fundamental bench mark is Castor, 29.80km to the northeast.

Second Geodetic Levelling, England & Wales (1912-21)
This fundamental bench mark was used during the Second geodetic levelling, England & Wales, and was levelled with a height of 305.4730 feet [93.1082 metres] above mean sea level (Newlyn datum). It was included on the Cranford to Castor and Great Linford to Cranford levelling lines.

Third Geodetic Levelling, England & Wales (1950-68)
This fundamental bench mark was used during the Third geodetic levelling, England & Wales, and was levelled with a height of 305.4730 feet [93.1082 metres] above mean sea level (Newlyn datum). It was included on the Castor to Cranford and Cranford to Great Linford levelling lines.