Üçbaş is a village in Şaphane District, in Kütahya Province, Türkiye. Üçbaş lies at 813 m above sea level, in the Eğrigöz Dağı mountains. It has 600 inhabitants. The nearest city is Gediz, 10.7 km to the east. Among the landmarks around are Aizanoi (38 km).
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