Doris (Greek: ἡ Δωρίς: Eth. Δωριεύς, pl. Δωριῆς, Δωριεῖς; Latin: Dores, Dorienses), is a small mountainous district in ancient Greece, bounded by Aetolia, southern Thessaly, the Ozolian Locrians, and Phocis; the original homeland of the Dorian Greeks. It lies between Mounts Oeta and Parnassus, and consists of the valley of the river Pindus (Πίνδος), a tributary of the Cephissus, into which it flows not far from the sources of the latter. The Pindus is now called the Apostoliá.