I imagine road salt comes from multiple places, but here in Bonaire, N.A. they harvest big piles of salt that get loaded on ships and delivered to many places in the world for road salt.
Water is pumped from the ocean into evaporation ponds, that after a while get pumped into condenser ponds then finally the constant desert like wind of Bonaire dries the condenser ponds out to salt about a foot thick. Then they go in with a harvester that loads it on to big trucks that dump into a pit with a conveyor that stock piles it. Bulldozer and articulated loader cleans up the scraps. Then the same conveyor system goes out to a pier where ships are loaded. Used to be slaves and donkeys that did the work, now it is heavy machinery. Quite an operation. It is all road salt. No human consumption salt, although I know of at least some that has made it back to the states and consumed. I think the Pink Flamingo poo must give it that "special" all natural flavor.
This particular salt is pure old evaporated sea salt that goes on roads.
I have tons of pictures but not on this particular computer.
