In 2008, Spain began filling a 300-metre-deep coal mine with 547 billion litres of water; four years later, it became one of the country’s largest artificial lakes

In 2008, Spain began filling a 300-metre-deep coal mine with 547 billion litres of water; four years later, it became one of the country’s…

Think of the biggest hole you’ve ever seen. Now make it nearly as deep as the Eiffel Tower is tall and spread it out over an area about the size of 1,600 American football fields.

España creó un lago artificial en tan solo 4 años: llenó una mina de carbón de 300 metros de profundidad con 547.000 millones de litros agua