The , also called the Seta River
) and the Uji River
) at portions of its route, is the principal river
in Osaka Prefecture
. The source of the river is Lake Biwa
in Shiga Prefecture
to the north.
The Yodo River, usually called the Seta River in Shiga Prefecture, begins at the southern outlet of the lake in Ōtsu
. There is a dam here to regulate the lake level. Further downstream, the Seta flows into Kyoto Prefecture
and changes its name to the Uji River, and then merges with two other rivers, namely the Katsura River
and the Kizu River
in Kyoto Prefecture. The Katsura has its headwaters in the mountains of Kyoto Prefecture, while the Kizu comes from Mie Prefecture
. From the three-river confluence, the river is called the Yodo River, which flows south, through Osaka, and on into Osaka Bay
. In Osaka, part of the river has been diverted into an artificial channel; the old course in the heart of Osaka is called the Kyū-Yodo River
(literally, 'Former Yodo River').
It is a source of water for irrigation and is used for power in the process of hydroelectricity.
The Uji River, or the Yodo River in Kyoto Prefecture, is a popular fishing spot during the summer and fall months.
The Uji River has a prominent place in the so-called "Uji chapters" of the Tale of Genji
, a novel written by the Japanese noblewoman Murasaki Shikibu
in the early eleventh century.
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