Lake Tazawa

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Lake Tazawa
Kansa Shrine and Lake Tazawa (Feb. 2021)
Lake Tazawa
Location	Semboku, Akita Prefecture
Coordinates	39°43′30″N 140°39′41″E / 39.72500°N 140.66139°E / 39.72500; 140.66139
Lake type	crater lake (?)
Primary inflows	no natural inflow
Primary outflows	no natural outflow
Basin countries	Japan
Surface area	25.9 km2 (10.0 sq mi)
Average depth	280.0 m (918.6 ft)
Max. depth	423.4 m (1,389 ft)
Water volume	7.2 km3 (1.7 cu mi)
Shore length1	20 kilometres (12 mi)
Surface elevation	249 m (817 ft)
1 Shore length is not a well-defined measure.

Lake Tazawa (田沢湖, Tazawa-ko) is a caldera lake in the city of Semboku, Akita Prefecture, northern Japan. It is the deepest lake in Japan at 423 metres (1,388 ft). The area is a popular vacation area and several hot spring resorts can be found in the hills above the lake. Akita Prefecture's largest ski area, Tazawako Ski Area [ja], overlooks the lake.