BENCHMARKS continued
This
one from Michael Byrne is not the usual style, but many like it can
be found within the United Kingdom. It's a "One Inch Brass
Bolt", usually driven into bedrock and where no convenient
vertical surface exists, giving a recorded height on that exact spot.
It's in the grounds of Holyrood Park, Edinburgh.
Below:
A 'mark in Holyrood
Park, Edinburgh, Scotland.
Above:
In Hollyrood Park looking north towards the Firth of Forth, with the
bolt at lower right.
