A Challenging Adventure Lab

Ye Olde Survey Monuments Tribute Adventure by GAGB 10 stages non-sequential

We are featuring this Adventure Lab as one of the stages is in our area at the top of Snowdon. Ye Ole Survey Monuments, YOSM for short, GC45CC, was a travelling Virtual cache owned by outforthehunt. The cache moved around the country, to claim a find you were looking for a specific survey monument, trig point, pillar, surface block, rivet or bolt. Like all travelling caches, this cache was archived by Groundspeak in 2017. At the time, it had 25,076 finds by 3,528 cachers and 651 favourite points. The Adventure Lab takes you to the 10 most visited YOSM locations in Great Britain. This Adventure Lab cache will be an adventure! If you complete all of the stages you will have travelled the length and breadth of Great Britain. Good Luck!

Snowdon Summit, Gwynedd – YSM0598
Blorenge, Gwent – YSM0272
Flax Bourton (R), Somerset – YSM0415
Brean Down, Somerset – YSM0348
Woodhenge, Wiltshire – YSM0223
The Ring, Gloucestershire – YSM0269
Pittern Hill, Warwickshire – YSM0540
Mersea Gun Emplacement, Essex – YSM0623
Brimham Rocks, Yorkshire – YSM0300
Kinnoull Hill, Perth – YSM0385

The Adventure Lab was published in 2019 and at the time of writing this there has only been 7 people complete the challenge.

GAGB is the Geocaching Association of Great Britain, it is free to join, for more information visit their website: http://www.gagb.org.uk

YOSM Today

Naturesbyte at YSM290 Hough Hill .

After the original cache was archived the cache GC76962 Ye Ole Survey Monuments Memorial Cache was published to allow finders of YOSMs to still record their finds as a note to enable their ‘statpics’ to be updated, see below. Sadly the YOSM website is broken and a list of all YOSM sites is not currently available.

statpic sample