Ritigala is an ancient Buddhist monastery and mountain in Sri Lanka. The ruins and rock inscriptions of the monastery date back to 1st century BCE. It is located 43 km away from the ancient monastic city of Anuradhapura At 766 m above sea level, and 600 m above the surrounding plains, Ritigala is the highest mountain in northern Sri Lanka. The modern name Ritigala is derived from the ancient name Ariṭṭha Pabbata (Dreadful Mountain), mentioned in the Mahavamsa. Ritigala Kanda rises to an elevation of 2513 feet, higher than the other main tourist attractions of the north central plains, namely Sigiriya, Dambulla and Mihintale. The significance of this topographical feature lies in the abrupt sheerness of the massif, its wooded slopes and wet microclimate at the summit. During the North East monsoon (December to February), Ritigala experiences the highest rainfall (125 cm) of entire dry zone. The wet micro climate at Ritigala is a singular occurrence in the north central plains, the ancient Sri Lanka’s “Wewe Bandi Rata” meaning “the land of rainwater reservoirs” in Sinhalese. Legends abound on Ritigala. One of mysterious aspect is the belief of powerful medicinal herbs found near the crest. A herb called “Sansevi” is believed to have the power of conferring long life and curing all human pain. According to legend, all vegetation on Ritigala is protected by Yakkas, the guardian spirits of the mountain. The venerable Prof. Walpola Sri Rahula Maha Thera (1907–1997), a Professor of History and Religions at Northwestern University, a Buddhist monk scholar, in his “History of Buddhism in Ceylon, says "the term “Yaksa” denotes superhuman beings worthy of respect. It is possible that it was applied, by an extension of meaning, also to some pre-Buddhistic tribe of human beings, aboriginal to Ceylon". The legend has it that Prince Pandukhabaya (3rd century BC) was assisted by Yakkas during his battles against his eight uncles at the foot of Ritigala. Another legend refers to a duel of two giants, most possibly Yakkas, named Soma and Jayasena. Soma being killed in the duel, Jayasena became a legend.