View from the crater rim (November 2008).
|Type||oligotrophic crater lake|
|Primary inflows||none |
|Primary outflows||evaporation |
|Surface area||4.68 km2 (1.81 sq mi)|
|Max. depth||148 m (486 ft)|
|Shore length1||8 km (5.0 mi)|
|Surface elevation||258 m (846 ft) |
|1 Shore length is not a well-defined measure.|
Lake Kuttara (倶多楽湖 Kuttara-ko?) is a near circular caldera lake in Shiraoi, Hokkaidō, Japan. It is part of Shikotsu-Tōya National Park. The lake is recognized as having the best water quality in all of Japan. With a transparency of 19 metres (62 ft), the lake ranks second only to Lake Mashū according to the Ministry of the Environment.
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