Michigan Basin Map (Detroit Salt Company). According to the Detroit Salt Company, 400 million years ago, ocean water flooded into a large basin, an area known as the Michigan Basin.As the water ...

This salt sanatorium specialises in helping youngsters - about half of the 200 people who get treated every day are children. "It's easy to breathe and it's pleasant to sleep here. Nothing disturbs ...

Romanian officials were rerouting a stream in central Romania to prevent further flooding of the Praid salt mine, one of Europe's largest salt reserves and a crucial tourist attraction, after parts of ...