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The 11,900 square kilometres (4,600 sq mi) basin of the Shinano-Chikuma River system is the third largest in Japan and at 367 kilometres (228 mi), is the longest river in the country. The river system supports a population of around 3 million (as of 2009) and supports significant agriculture and electricity generation. [1] [26]: 182 The river ...
Rivers of Japan are characterized by their relatively short lengths and considerably steep gradients due to the narrow and mountainous topography of the country. An often-cited quote is 'this is not a river, but a waterfall' by the Dutch engineer ( o-yatoi gaikokujin ) Johannis de Rijke who had visited the Jōganji River , Toyama Prefecture .
[6] [7] If a river system is designated Class A, all the constituent rivers are also designated as such. Therefore, Class B rivers cannot coexist with Class A rivers in the same river system. [7] This designation is also called First Class. Class A river (一級河川, Ikkyū kasen) is a designation which applies to important individual rivers ...
Even when detailed maps are available, the length measurement is not always clear. A river may have multiple channels, or anabranches. The length may depend on whether the center or the edge of the river is measured. It may not be clear how to measure the length through a lake or reservoir. Seasonal and annual changes may alter both rivers and ...
Map all coordinates using OpenStreetMap. Download coordinates as: KML; ... Pages in category "Rivers of Japan" The following 200 pages are in this category, out of ...
This is a list of longest rivers of Asia. Included are all rivers with lengths over 1,000 km (620 mi) that are in Asia. ... River Countries Length km mi 1 Yangtze ...
The Tone River (利根川, Tone-gawa) is a river in the Kantō region of Japan. It is 322 kilometers (200 mi) in length (the second longest in Japan after the Shinano River ) and has a drainage area of 16,840 square kilometers (6,500 sq mi) (the largest in Japan).
The Ishikari River (石狩川, Ishikari-gawa), at 268 kilometres (167 mi) [1] long, is the third longest in Japan and the longest in Hokkaidō. The river drains an area of 14,330 square kilometres (5,530 sq mi), [ 1 ] making it the second largest in Japan, with a total discharge of around 14.8 cubic kilometres (3.6 cu mi) per year.