Ye Ole Survey Monuments
This map showcases all the trig points found in the UK that are part of the Ye Ole Survey Monuments Series.
Important to note: the locations displayed represent the trig point itself, not the hidden geocache.
| Map Key: | |||||||||||||||||||
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YOSM Locations | | |  |
Pillar | | |  |
Bolt | | |  |
Rivet | | |  |
Cannon | | |  |
Surface Block | | |  |
Intersected Station |
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Buried Block | | |  |
FBM | | |  |
Disc | | |  |
Cut | | |  |
Berntsen | | |  |
Concrete Ring | | |  |
Active Station |
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Brass Plate | | |  |
Block | | |  |
Pipe | | |  |
Spider | | |  |
Fenomark | | |  |
Curry Stool | | |  |
Platform Bolt |
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Unknown/Other | | | All Trig Points | | | |||||||||||||||
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Archived | These maps were last updated on 13 July 2025 | |||||||||||||||||