Lake Tōya

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Lake Tōya 洞爺湖
Toyako (November 2007)
Location	Iburi Subprefecture, Hokkaidō
Coordinates	42°34′44″N, 140°51′16″ECoordinates: 42°34′44″N, 140°51′16″E
Lake type	oligotrophic crater lake
Primary inflows	Ō River (大川, Ō-gawa^?), Sōbetsu River (ソウベツ川, Sōbetsu-gawa^?)
Primary outflows	Sōbetsu River (壮瞥川, Sōbetsu-gawa^?)
Basin countries	Japan
Max. length	10 kilometres (6.2 mi)
Max. width	9 kilometres (5.6 mi)
Surface area	70.7 square kilometres (27.3 sq mi)
Average depth	117.0 metres (384 ft)
Max. depth	180 metres (590 ft) ^[1]
Water volume	8.19 cubic kilometres (1.96 cu mi)
Shore length¹	46 kilometres (29 mi) ^[2]
Surface elevation	84 metres (280 ft)
Frozen	never
Islands	Nakano-shima
Settlements	Sōbetsu, Hokkaidō, Tōyako, Hokkaidō
¹ Shore length is not a well-defined measure.

Lake Tōya (洞爺湖, Tōya-ko^?) is a volcanic caldera lake in Shikotsu-Toya National Park, Abuta District, Hokkaidō, Japan. The stratovolcano of Mount Usu lies on the southern rim of the caldera. It is a nearly circular lake with 10 kilometers diameter in east-west direction and 9km in north-south direction. The main town is Tōyako Onsen (洞爺湖温泉), on the western shore. The town Tōyako is located on the other side of the lake.

Lake Tōya is said to be the northernmost lake in Japan that never ices, and the second most transparent lake in Japan. Nakano-shima, an island in the middle of the lake, houses the Tōya Lake Forest Museum.

The 2008 G8 Summit will be held at Lake Tōya and The Windsor Hotel Toya Resort & Spa.

[edit] References

^ Geographical Survey Institute map 25000:1 洞爺
^ Bisignani, J.D. (December 1993). in Taran March: Japan Handbook, Second, Chico, California: Moon Publications, Inc., 781. ISBN 0-918373-70-0.