Linked from
The 7 pages that link to Salt mining, each with the reason it gives.
Sodium chlorideRelated: Mining brings naturally deposited sodium chloride to the surface.
HaliteRelated: Mining recovers halite from thick underground beds and domes.
Lake AssalRelated: Salt has been harvested from Lake Assal’s shores for local use and commerce.
Halide mineralRelated: Halite deposits are a primary source of mined salt.