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Latitude: 51.1836 / 51°11'1"N
Longitude: -1.7224 / 1°43'20"W
OS Eastings: 419500
OS Northings: 142749
OS Grid: SU195427
Mapcode National: GBR 4ZZ.PCS
Mapcode Global: VHC2V.3H9Z
Plus Code: 9C3W57MH+F3
Entry Name: Triangulation Pillar
Listing Date: 10 October 1988
Grade: II
Source: Historic England
Source ID: 1318517
English Heritage Legacy ID: 321397
ID on this website: 101318517
Location: Wiltshire, SP4
County: Wiltshire
Civil Parish: Bulford
Built-Up Area: Bulford Camp
Traditional County: Wiltshire
Lieutenancy Area (Ceremonial County): Wiltshire
Church of England Parish: Bulford St Leonard
Church of England Diocese: Salisbury
Tagged with: Architectural structure
BULFORD BEACON HILL SU 14 SE 6/86 Triangulation Pillar
II Triangulation pillar, c1936 within enclosure and over gun end of base of original Principal Triangulation of 1794. Concrete pillar in form of square cone with bronze tripod base on top, and benchmark on side (height 204m). Original triangulation point consists of an iron cannon set vertically 3m in ground, the muzzle filled and holding the north-east corner of the primary survey triangle for western England, later protected by 1.9m concrete kerb in form of chamfered square, and all set in triangular earthwork with ditch of 2m wide. This point is 36,574 ft from the southern point near Old Sarum. (Welfare, H.G., Survey Review XXV 194. October 1979)
Listing NGR: SU1950042749
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