At the foot of Mt. Danyama in the Karatooka district of Teshima, the stone cisterns were constructed in 1929 to provide clean water for area residents. Above them is a tiered masonry wall of granite blocks in even rows. Spring water from the mountain flows from an upper reservoir into three small cisterns and one large cistern, each providing water for different purposes. This facility is an example of the important role stone has traditionally played in the living environment of the island of Teshima.