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Son River

 

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Son River


 
 

The Son River or Sone of central IndiaIndia

India , officially the Republic of India, is a country in South Asia....
 is the largest of the Ganges' southern tributaries. The Son originates in ChhattisgarhChhattisgarh

Chhattisgarh , a state in central India, formed when the sixteen Chhattisgarhi speaking southeastern districts of Madhya Pr...
 state, just east of the headwaters of the Narmada RiverNarmada River

The Narmada or Nerbudda is a river in central India in Indian subcontinent....
, and flows north-northwest through Madhya PradeshMadhya Pradesh

Madhya Pradesh is a state in central India....
 state before turning sharply eastward when it encounters the southwest-northeast-running Kaimur Range. The Son parallels the Kaimur Range, flowing east-northeast through Uttar PradeshUttar Pradesh

Uttar Pradesh , also popularly known by its abbreviation U.P., means the 'northern province'....
 and BiharBihar

Bihar is a state of the Indian union situated in the eastern part of the country....
 states to join the Ganges just above PatnaPatna

Pa?na is the capital of the Indian state of Bihar, and one of the oldest continuously inhabited places in the world....
. Geologically, the lower valley of the Son is an extension of the Narmada Valley, and the Kaimur Range an extension of the Vindhya RangeVindhya Range

The Vindhya Range is a range of hills in central India, which geographically separates the Indian subcontinent into northern India...
.

The Son river at 784 kilometres (487 miles) long, is one of the largest rivers of India. Its chief tributaries are the RihandRihand River

The Rihand is a river in east-central India, a tributary of the Son River....
 and the Koel. The Son has a steep gradientGradient

A generalization of these concepts is the gradient in vector calculus; and this article is mostly about this vector gradient...
 (35-55 cm per km) with quick run-off and ephemeralEphemeral

Ephemeral things are transitory, existing only briefly....
 regimes, becoming a roaring river with the rain-waters in the catchmentDrainage basin

A drainage basin is a region of land where water from rain or snowmelt drains downhill into a body of water, such as a river...
 area but turning quickly into a fordable stream. The Son, being wide and shallow, leaves disconnected pools of water in the remaining part of the year. The channel of the Son is very wide (about 5km at DehriDehri

Dehri is a city and a municipality in Rohtas district in the state of Bihar, India....
) but the floodplainFloodplain Summary

A floodplain is any normally dry land area that is susceptible to being inundated by water from any natural source....
 is narrow, only 3 to 5 km wide. In the past, the Son has been notorious for changing course, as is traceable from several old beds on its east. In modern times this tendency has been checked with the anicut at Dehri, and now more so with the Indrapuri Barrage.

Indrapuri Barrage

Indrapuri Barrage is one of the longest damDam

A dam is a barrier across flowing water that obstructs, directs or retards the flow, often creating a reservoir, lake or imp...
s in IndiaIndia

India , officially the Republic of India, is a country in South Asia....
,, storing a large amount of water. It is located nearly 5 km from DehriDehri

Dehri is a city and a municipality in Rohtas district in the state of Bihar, India....
. From it flow 2 major and several other small canalCanal

Canals are man-made waterways, usually connecting existing lakes, rivers, or oceans....
s which supply the whole of western and central BiharBihar

Bihar is a state of the Indian union situated in the eastern part of the country....
 with water for irrigationIrrigation

Irrigation is the replacement or supplementation of rainfall with water from another source in order to grow crops or plants...
.