> Here's one from 2017:
> Their hypothesis is that the limestone softens
> when it gets wet so that carts using the exact
> same path will eventually cut into the bedrock
> leaving those tracks. And when the track gets too
> deep to continue using, another path is chosen,
> which itself eventually gets worn into a track,
How does all of this explain the points and crossovers?
The other Clapham Junction, London....