Katsura River

The Katsura River is a tributary of the Yodo River in the Kyoto Prefecture, Honshu island, Japan.
Traditionally it was regarded as the Western border of Kyoto city.
The river rises near the Sasari mountain pass, close to the city of Nantan.
It emerges from the mountains and expands into a shallow, slow-flowing river until Togetsukyo Bridge in Arashiyama. From that point forward, the river is referred to as the Katsura River, and its flow continues for several kilometers through Kyoto Prefecture until it joins the Kamo and Uji rivers.
The Katsura River area features some of the oldest shrines in Kyoto and Japan, such as Matsuo Shrine, and, as a counterpoint to the channelled Kamo River, supports acres of agricultural area on its flood plain. It also is known for its summer supply of ayu.