Trigpoints That I Have Visited
Trigpoints are the commom name for " Triangulation Pillars ". These are concrete pillars that are about 4' tall which were used by Ordinance Survey in order to detemine the exact shape of the country. They are generally located on the highest bit of ground in the area so that there is direct line of sight from one to the next by sitting a theodolite (an accurate protractor built into a telescope) on top of the pillar, accurate angles between pairs of nearby trigpoints could be measured. This process is called "triangulation"
A major project to map out Great Britain began in 1936. the network of triangular pillars, with accurately known positions led to the excellant OS maps that we enjoy today. The co-ordinate system used on these maps is known as "The National Grid" and it is essential that you are familiar with this system if you are to get the most out of OS maps.
Whitwell Moor Trigpoint
SK 24972 97237
Flush Bracket S1752
Waypoint TP6924
Mam Tor Trigpoint
SK 12769 83612
Flush Bracket S4230
Waypoint TP4623
Brown Knoll Trigpoint,
SK 08369 85129,
Flush Bracket S2782
Waypoint TP1707
Kinder Low Trigpoint,
SK 07904 87059,
Flush Bracket S4113,
Waypoint TP4216
Stanage Edge Trigpoint,
SK 25094 83017,
Flush Bracket S2156,
Waypoint TP6150.
Lose Hill, Strictly speaking not a trigpoint but entered here because of the climb to it, the pillar does
have a very nice toposcope with compass points and nearby hill names engraved on it.
Winhill Pike Trigpoint,
SK 18678 85093,
Flush Bracket S4228,
Waypoint TP6995
Hope Church Spire Trigpoint
SK 17216 83473
Flush Bracket SK39/into33
Intersected station
High Neb Trigpoint
SK 22816 85344
Flush Bracket S2157
Waypoint TP3794
Back Tor Trigpoint
SK 19763 90991
Flush Bracket S2145
Waypoint TP0949
Lost Lad, Not a Trigpoint, but entered here because it is a great Toposcope with an engraved 360 view.
Holme Moss Trigpoint (Black Hill)
SE 07816 04684
Flush Bracket PP026
Waypoint TP3980
