Imphal Valley also called as Imphal Tampak in Manipuri Dialect or Manipur Valley also called as Manipur Tampaakin Manipuri Dialect and is located in the Indian state of Manipur and is an irregular almost oval shaped canyon that was formed as a result of the multiple small rivers that originate from neighbouring hill regions surrounding the valley and flow through it. The water in the Imphal valley is fetched from several rivers that flows via the valley, such as Imphal River, Iril River, Thoubal River, Khuga River and Sekmai river.
Imphal River is the most prominent of the rivers which pass through the heart of the valley, and the river for which the entire valley is named. The Imphal valley is located in almost the centre of the state of Manipur and is surrounded by hills on all sides.
Manipur has multi-topographical characteristics; the hills form one of the two main physical regions of the state. The other is the Manipur valley or the Imphal valley, in which the state capital, Imphal city is situated. The hill ranges that surround the valley include Naga hills to the north, the East Manipur hills along the eastern Myanmar border, the Kuki hills to the south, and the West Manipur Hills to the west. Many geologists have suggested that the Imphal valley is actually a lacustrine plain formed by siltation of an ancient lake. The Loktak Lake, biggest fresh water lake in the northeast region of India, located in the south west of the valley, is believed to be a remnant of the ancient lake.
The valley is about 57.92 km from north to south and 32.19 km from east to west at its broadest. The area of the valley is only 1,864.44 sq.km.[4] This plain area extends to the foothills of the mountains. All rivers of the valley flow south due to the slope of the valley from north to south. The average elevation of the valley is 790 m above mean sea level but in the north it is 832.2 m and in the south it is 760.01 meters from mean sea level.