(Ἁδύλιον, Ἡδύλε[ι]ον; Hadýlion, Hēdyle[i]on). Mountain range (modern Vetritza) with an average ridge height of 300-400 m (highest point: 543 m) on the northern border of Phocis and Boeotia. In the west at Parapotamioi separated from Parnassus by the Kephisos. In the east and southeast bordering on the mountains Palaiovouna (ancient Hyphanteion?) and Akontion. Evidence: Dem. Or. 19,148 (with schol.); Theopomp. FGrH 115 F 157; Str. 9,3,16; Plin. HN 4,25; Plut. Sulla 16f.
Philippson/Kirsten, I,2, 425.