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Updated: April 2, 2018
As one of the largest reservoirs in Japan, Ogouchi Reservoir holds the water supply for the people of Tokyo, about 189 million tons. The 149-meter-high and 353-meter-long structure wasn’t completed without pain--nearly 90 people died during its construction.
You will see Tama River at the bottom of the reservoir, and Mount Mitake, a locally-revered mountain, in the vicinity. Visit the observation tower for stunning views of the water. If you're active, take the Mt. Mitake Rock Garden route and trek through moss-covered stones, waterfalls and fresh mountain streams. Wear a bear bell if possible--black bears exist in this area.
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