Galdakao is a town and municipality located in the province of Biscay, in the Basque Country. It is located in the Greater Bilbao, in the valley of the Ibaizabal river, near the Ganguren mountain range. It is surrounded by some summits such as Arrezurriaga (329 m), Txispamendi (221 m) and Santa María (476 m) in the north and Upo (556 m) and Mandoia (640 m) in the south. It is coterminous with Zamudio, Lezama and Larrabetzu in the north, with Zaratamo and Zeberio in the south, with Amorebieta, Lemona and Bedia in the east and with Etxebarri and Basauri in the west.

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