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Lake Nakatsuna

Lake Nakatsuna
Nakatsuna-lake.JPG
Lake Nakatsuna in winter
Location Nagano Prefecture, Japan
Coordinates 36°30′N 137°51′E / 36.500°N 137.850°E / 36.500; 137.850Coordinates: 36°30′N 137°51′E / 36.500°N 137.850°E / 36.500; 137.850
Lake type Eutrophic lake
Surface area 0.125 square kilometres (0.048 sq mi)
Max. depth 12 metres (39 ft)
Surface elevation 820 m (2,690 ft)
Settlements Near Omachi, Nagano, Honshū, Japan

Lake Nakatsuna (中綱湖 Nakatsuna-ko?) is a lake in Nagano Prefecture, Japan. It is one of the "Nishina Three Lakes" (Lake Aoki, Lake Nakatsuna and Lake Kizaki). Its sediments have been studied in an effort to better understand climate change in Japan, finding evidence of the Medieval Warm Period and Little Ice Age.



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