#10429
|
They’re Ordnance Survey grid references. Used by old people that still use maps.
HU references the grid square of the UK, HU covering most of Shetland and the the 6 numbers pinpoint a spot to an accuracy of 10m. Usually if trying to find somewhere new, it’s worth taking a map with you with the grid reference marked on. It can be surprisingly hard and tricky if you don’t, even if you think you know the area!
I suggest a crash course, and who better to teach you than adventurer extrordinaire Simon King…
If you’ve got more time then try this: http://www.ordnancesurvey.co.uk/docs/ebooks/map-reading.pdf
Once done, go for a walk on Ronas Hill in the mist and see if you’ve understood it. š