Friday, January 25, 2013

Salt mine

(clicking on image brings up larger view)
Salinas, Rio Maior, Portugal
Watercolour, 6'x8'

Rio Maior has been exploring for centuries a curious set of rock salt mines, the unique in the interior of the country.

Millions of years ago, the sea has receded a lot and probably a lake ended up drying, becoming a salt mine where the salt is seven times more mineralized than in the coastline.

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