Tazawako Ski Area
is a caldera lake in the city of Semboku, Akita Prefecture, northern Japan. It is the deepest lake in Japan at . 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 a overlooks the lake. Hydrology Lake Tazawa has a surface elevation of 249 meters, and its deepest point is 174.4 meters below sea level. Due to this depth, there is no possibility that the lake is frozen in the dead of winter. At , it is slightly deeper than Lake Shikotsu in Hokkaidō (423.4 meters), and is the 17th deepest lake in the world. Lake Tazawa has no natural inflow or outflow, and in 1931, had a measured transparency of 31 meters, comparable with Lake Mashū, but with abundant aquatic organisms. However, due to the construction of hydroelectric power plant facilities and agricultural runoff, coupled with an influx of highly acidic water from Tamagawa Hot Spring, transparency has be ...
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Semboku, Akita
is a city located in Akita Prefecture, Japan. , the city had an estimated population of 25,857 in 10,584 households, and a population density of 24 persons per km2. The total area of the city is . Geography Semboku is located in the mountains of central Akita Prefecture, bordering on Iwate Prefecture and the Ōu Mountains on the east. Lake Tazawa, the deepest lake in Japan, is located in the center of the city borders. Parts of the city are within the borders of the Towada-Hachimantai National Park. Neighboring municipalities *Akita Prefecture **Akita **Kitaakita **Kazuno ** Daisen *Iwate Prefecture ** Hachimantai **Shizukuishi ** Nishiwaga Climate Semboku has a Humid continental climate (Köppen climate classification ''Dfa'') with large seasonal temperature differences, with warm to hot (and often humid) summers and cold (sometimes severely cold) winters. Precipitation is significant throughout the year, but is heaviest from August to October. The average annual temperature ...
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