What are the metal stud/ blanks that stick out of the mountain for?
Driving through a mountain range, I have been noticing these metal pipe shaped studs of various thicknesses. They are mainly only seen where the mount
Driving through a mountain range, I have been noticing these metal pipe shaped studs of various thicknesses.
They are mainly only seen where the mountain has been cut away for a mountain pass etc.
or:Driving through a mountain range, I have been noticing these metal pipe shaped studs of various thicknesses. They are mainly only seen where the mountain has been cut away for a mountain pass etc.
