Located within the comarca of Greater Bilbao, directly south of the city of Bilbao itself, the area includes the towns of Basauri, Galdakao, Etxebarri and Arrigorriaga, among others.
The region is located within the comarca of Greater Bilbao, to the south of Bilbao, encompassing the towns of Basauri, Galdakao, Etxebarri, and Arrigorriaga, as well as other nearby settlements.