Nen River
The Nen River or Nenjiang (Chinese: 嫩江; pinyin: Nèn Jiāng; Wade–Giles: Nen-chiang), or Nonni (Manchu: ᠨᠣᠨ
ᡠᠯᠠ; Möllendorff: Non ula; Abkai: Non ula) is a river in Northeast China. The Nen River flows through the northern part of Heilongjiang Province and the northeastern section of Inner Mongolia, some parts of the river forming the border between the two regions. At 1370 kilometres (850 mi) in length, the Nen River is the longest tributary of the Songhua River.
The Nen River flows in the general southern direction in a wide valley between the Greater Khingan and the Lesser Khingan mountain ranges in the west and east, respectively, and meets the Second Songhua River near Da'an to form the Songhua River .
The river is prone to flooding, as occurred most recently in 1998 and 2005.
Tributaries
Major tributaries of the Nen River include:
River Nene
The River Nene (/ˈnɛn/) or /ˈniːn/-see below) is a river in the east of England that rises from three sources in the county of Northamptonshire. The tidal river forms the border between Cambridgeshire and Norfolk for about 3.7 miles (6 km). It is the tenth longest river in the United Kingdom, and is navigable for 88 miles (142 km) from Northampton to The Wash.
Course
The River Nene is the tenth longest river in the United Kingdom. From its source at Arbury Hill to Northampton the river falls a total of 300 feet (91 m) in 17 miles (27 km). For the remainder of its course, the Nene falls less than 200 feet (61 m). It has a catchment area of 631 square miles (1,630 km2) and a mean flow of 328 cubic feet (9.3 m3) per second. The final 88 miles (142 km) from Northampton to the Wash is navigable.
The river's most westerly source can be found near the village of Badby near Daventry. On the eastern slope of Arbury Hill and in pools between Arbury Hill and Sharmans Hill there are three tributaries that converge at Dodford mill to form the upper reaches of the Daventry Nene. The two northern streams flow through the villages of Badby and Newnham to the convergence, whilst the southerly stream runs through Fawsley Park and through the village of Everdon before the convergence. From Dodford the river passes through the village of Weedon where it flows under the main west coast railway line, the Grand Union Canal, and Watling Street. A little west of Weedon the river converges with its tributary source from Yelvertoft from the north. This tributary, the Yelvertoft Nene, is formed from a great many streams. The river now flows towards Northampton, passing through Flore and Nether Heyford, where it is joined by small streams on either bank. A little past Bugbrooke Mill the Nene passes under the M1 motorway and falls over a weir towards Kislingbury.
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