Gravity Aided
Legendary Member
- Location
- Land of Lincoln
Mr Aided, does the USGS have similar markers on your side of the pond?
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Mr Aided, does the USGS have similar markers on your side of the pond?
You'll need an OS map, the highest point nearby, and some patience!how do I find out if any of these trig points or benchmarks can be found anywhere near me ( wigan) ??? how do you lot know where they are.
Especially when new! Although I don't think the copper is anodized or coated, so they turn green rather quickly.They're really nice!