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Cache a Trig - Midmar Multi-Cache

This cache has been archived.

Bexen: Location where cache is has been completely destroyed and therefore deciding to archive cache.

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Hidden : 4/18/2016
Difficulty:
1.5 out of 5
Terrain:
2 out of 5

Size: Size:   small (small)

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Geocache Description:

Please make sure any dogs are kept under control, as the hills may have livestock on them.

This multi should only take you around 20 minutes to get to the trig, answer the questions and find the cache. Reason its a multi is because I don't want to put cache in the field where there could be livestock.





Park your car at the Hall car park and walk up the hill to the trig point you should see in the distance. Once at the trig please look at the Trig Plate and answer the following question

A) 1st number on plate
B) 2nd Number on Plate
C) 1st number minus 2nd number
D) Last number on Plate

Cache is located at :- N 57° 09.D0A W 002° 31.CBC


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)

Snyyra Gerr

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)