Ryūchi Cave (龍地洞, Ryūchidō; Literally meaning "Dragon Ground Cave") is a legendary place that is equally as famous as Mount Myōboku and Shikkotsu Forest. It is the residence of the snakes — including the sacred White Snake Sage and is also where Orochimaru uncovered the source of Jūgo's clan's abilities.[1] Orochimaru and later Kabuto Yakushi trained here to achieve Sage Mode.