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A 'Pole' is an uncommon type of triangulation mark, used in Intersected Stations.

20 instances are recorded in the OSGB36 list [1]. Mark descriptions include "Pole in cairn", "Aircraft beacon pole", "Anemometer pole" and "Admiralty Target".

Stanedge (aka Stanage) Pole in 2006
Station name T:UK Order Computed Block
Beamsley Beacon TP9976 3 1951 SD96
Carn-Du TP9982 3 1955 SW63
Carrag-Luz TP9981 3 1955 SW63
Granville Colly TP9977 4 1949 SK22
Grassmoor Colly Headgear TP9978 4 1952 SK58
Gravesend Aero Control Twr TP9985 3 1958 TQ87
Halfpenny Green Control Twr TP9979 4 1957 SJ90
Horsley North Reservoir TP7955 3 1990 NZ29
Horsley North Resr TP7955 3 1947 NZ29
Lochend No 5 Pit Derrick Pole TP9975 3 1947 NS77
March Gasworks Twr TP9983 3 1961 TL49
Meise Baine TP7954 4 1957 NR55
Monkton & Prestwick Ch Twr TP9974 3 1950 NS44
National Westminster Twr TP8857 3 1984 TQ47
Scotsburn Navigation Pole TP7957 3 1955 NH54
Stanedge Pole TP7411 4 1953 SK39
Swansea Wtr Twr TP8935 3 1939 SN80
The Maypole TP8890 3 1949 SO92
Twr West London Shooting Grounds TP9984 3 1948 TQ08
Warley Wtr Twr TP7525 3 1938 TQ81

16 of the marks are recorded as destroyed and the status of Meise Baine and National Westminster Twr is uncertain.

The two surviving examples of a 'Pole' are: Scotsburn Navigation Pole and Stanedge Pole.

Stanedge Pole is approx 20 ft high and has a lightning conductor attached. The station was installed in 1953 and was replaced in 2016. It is also an example of a non-pillar marked with a trig symbol on a current OS map (Dark Peak OL1).


  1. https://www.ordnancesurvey.co.uk/legacy/docs/gps/CompleteTrigArchive.zip