Taghaza is an abandoned salt-mining centre located in a salt pan in the desert region of northern Mali. It was an important source of rock salt for West Africa up to the end of the 16th century when it was abandoned and replaced by the salt-pan at Taoudenni which lies 150 km (93 mi) to the southeast. Salt from the Taghaza mines formed an important part of the long distance trans-Saharan trade. The salt pan is located 857 km (533 mi) south of Sijilmasa, 787 km (489 mi) north-northwest of Timbuktu and 731 km (454 mi) north-northeast of Oualata.