The is a river in

Chiba Prefecture is a prefecture of Japan located in the Kantō region of Honshu. Chiba Prefecture has a population of 6,278,060 (1 June 2019) and has a geographic area of . Chiba Prefecture borders Ibaraki Prefecture to the north, Saitama Prefecture to the ...

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

. It is in length and has a drainage area of . Under the Rivers Act of 1906 the Yōrō is designated as a Class 2 River. The Yōrō originates near Mount Kiyosumi on the border of Amatsukominato area of Kamogawa and Ōtaki, and then passes through Ōtaki and Ichihara. The

Yōrō Ravine was a after ''Reiki'' and before '' Jinki.'' This period spanned the years from November 717 through February 724. The reigning empress was . Change of era * 717 : The new era name was created to mark an event or series of events. The previou ...

and Awamata Falls are located in the upper part of the Yōrō, and it meets the Koshikiya River, the Heizō River, and the

Uchida River Uchida (written: 内田 lit. "within ricefield") is a Japanese surname. Notable people with the surname include: *Aguri Uchida (born 1949), a Japanese watercolour painter * Akiko Uchida (born 1985), a Japanese volleyball player *Asahi Uchida (born ...

at its midpoint. Land around the middle and lower parts of the Yōrō have been developed for

rice Rice is the seed of the grass species ''Oryza sativa'' (Asian rice) or less commonly ''Oryza glaberrima ''Oryza glaberrima'', commonly known as African rice, is one of the two domesticated rice species. It was first domesticated and grown i ...

production. The river flows through significant parts of the

Bōsō Hill Range The is a mountain range on the Bōsō Peninsula of Chiba Prefecture, Japan. The highest point in the Bōsō Mountain Range is at Mount Atago, with an altitude of . The hill range runs from roughly in a line from Mobara or Ōamishirasato to Kisa ...

before it empties into

Tokyo Bay is a bay located in the southern Kantō region of Japan, and spans the coasts of Tokyo, Kanagawa Prefecture, and Chiba Prefecture. Tokyo Bay is connected to the Pacific Ocean by the Uraga Channel. The Tokyo Bay region is both the most populous a ...

in the Goi and Iwazaki districts of Ichihara. Land reclamation at the mouth of the Yōrō is a component of the Keiyō Industrial Zone. The

Kominato Line The is a railway line in Chiba Prefecture, Japan, operated by the private railway operator . It extends from the west coast of central Bōsō Peninsula (where it connects with the Uchibō Line at ) to in the town of Ōtaki (where it connect ...

of the

Kominato Railway The is a railway line in Chiba Prefecture, Japan, operated by the private railway operator . It extends from the west coast of central Bōsō Peninsula (where it connects with the Uchibō Line at ) to in the town of Ōtaki, Chiba, Ōtaki (wh ...

roughly follows the path of the Yōrō and provides access to many of the tourist destinations along the river, including mountains, waterfalls, and an

onsen In Japan, are the country's hot springs and the bathing facilities and traditional inns around them. As a volcanically active country, Japan has many onsens scattered throughout all of its major islands. There are approximately 25,000 hot ...

hot spring A hot spring, hydrothermal spring, or geothermal spring is a spring produced by the emergence of geothermally heated groundwater onto the surface of the Earth. The groundwater is heated either by shallow bodies of magma (molten rock) or by circ ...

References

External links

Rivers of Chiba Prefecture Rivers of Japan {{Japan-river-stub