A mountain in Ceylon, not far from Kacchakatittha, no the right bank of the Maháválukanadí. There Pandukábhaya defeated his uncles and occupied their fortified camp for two years. The mountain was the abode of yakkhas, and it was here that Pandukábhaya captured the Yakkhiní Cetiyá, near the pond Tumbariyangana in the vicinity of the mountain (Mhv.x.46, 53, 58ff). King Mahánáma built a vihára there (Cv.xxxvii.213).
According to the Mahávamsa Tíká (p.289), the mountain was also called Udumabarapabbata (or -giri). There seems (See P.L.C., s.v. Udumbaragiri) to have lived at Udumbaragiri a fraternity of forest-dwelling monks who produced from among their number several scholars of great repute and monks of great piety - e.g., Kassapa and Medhankara.
The mountain is identified (Ep. Zey.ii.194ff) with the present "Gunners' Quoin" on the right bank of the Mahávaliganga.