Cache a Trig - Glack Hill Traditional Cache
Hidden : 2/25/2016
Difficulty:
2 out of 5
Terrain:
2 out of 5

Size: Size: regular (regular)

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Geocache Description:

Follow the off-road path from the car location until you see a hut, once there head up the path on the left before the hut. This will take you right up to the trig.


Trig Points (Click Here if you want to log your trig visit on TrigpointingUK)

Trigpoints are the common name for "triangulation pillars". These are concrete pillars, about 4' tall, which were used by the Ordnance Survey in order to determine the exact shape of the country. They are generally located on the highest bit of ground in the area, so that there is a direct line of sight from one to the next. By sitting a theodolite (an accurate protractor built into a telescope) on the 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 the shape of Great Britain began in 1936. The network of triangulation pillars, with accurately known positions, led to the excellent OS maps which we enjoy today. The coordinate 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 of OS maps, or this website.

Information taken from Trigpointing UK

Additional Hints (Decrypt)

Haqre gnyy ohfu

Decryption Key

A|B|C|D|E|F|G|H|I|J|K|L|M
-------------------------
N|O|P|Q|R|S|T|U|V|W|X|Y|Z

(letter above equals below, and vice versa)


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