Eighty years ago today, on 18 April 1936, the first triangulation pillar, or trig point,
was built in Northamptonshire at the start of an Ordnance Survey retriangualtion of Great Britain.
Read more about eighty years of trig points in this BBC News Article
This trig point is somewhere within our area - but can readers work out where?
2 comments:
Looks like Ballard Down to me...
Spot on Mike, it is indeed.
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