Bou Craa

Satellite image, showing the Bou Craa mine in 2000 (top) and 1987 (bottom)

Bou Craa is a town in Western Sahara, about 100 kilometres (62 mi) from El Aaiún. It's a mining town, where phosphate is mined. The world's longest conveyor belt connects it to the coast near El Aaiún. Bou Craa contains the largest known reserves of phosphate.