ποΈ Spain turned massive coal pit into lake
A huge coal mine site in northwest Spain was intentionally filled with water following its shutdown. Engineers at As Pontes managed to pump in about 547 billion litres of water starting in 2008. This process was completed on 18 April, 2012, creating one of Spain's largest artificial lakes. The lake now features two distinct chemical layers due to its varied water sources and temperature. This project offers a global model for rehabilitating former mining scars into usable green spaces. ποΈ