2016
SK9408 : Not a trig point
taken 10 years ago, near to Empingham, Rutland, England

Not a trig point
There are a series of these concrete pillars around the perimeter of the Rutland Water dam, and an even greater number of smaller ones on the outer face of the dam itself. They are almost certainly there for the purpose of monitoring creep (or its absence!) in the dam itself.
