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Hannoki Falls, in Toyama Prefecture, Japan, is the tallest waterfall in Japan at a height of 497 m (1,640 feet). However, it only has water from April to July when the snow covering the Midagahara plateau melts, so its neighbor, Shōmyō Falls, is usually considered the tallest.[1] Hannoki and Shōmyō falls are therefore twin waterfalls.

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