The Kunar River is about 480 km long, located in eastern Afghanistan

Afghanistan

Afghanistan , officially the Islamic Republic of Afghanistan, is a landlocked country located in the centre of Asia, forming South Asia, Central Asia and the Middle East. With a population of about 29 million, it has an area of , making it the 42nd most populous and 41st largest nation in the world...

 and north-western Pakistan

Pakistan

Pakistan , officially the Islamic Republic of Pakistan is a sovereign state in South Asia. It has a coastline along the Arabian Sea and the Gulf of Oman in the south and is bordered by Afghanistan and Iran in the west, India in the east and China in the far northeast. In the north, Tajikistan...

. The Kunar river system is fed from melting glacier

Glacier

A glacier is a large persistent body of ice that forms where the accumulation of snow exceeds its ablation over many years, often centuries. At least 0.1 km² in area and 50 m thick, but often much larger, a glacier slowly deforms and flows due to stresses induced by its weight...

s and snow

Snow

Snow is a form of precipitation within the Earth's atmosphere in the form of crystalline water ice, consisting of a multitude of snowflakes that fall from clouds. Since snow is composed of small ice particles, it is a granular material. It has an open and therefore soft structure, unless packed by...

 of the Hindu Kush

Hindu Kush

The Hindu Kush is an mountain range that stretches between central Afghanistan and northern Pakistan. The highest point in the Hindu Kush is Tirich Mir in the Chitral region of Khyber-Pakhtunkhwa, Pakistan.It is the westernmost extension of the Pamir Mountains, the Karakoram Range, and is a...

 mountains.

The river rises in the far north of Chitral District

Chitral District

Chitral is a district in the Khyber-Pakhtunkhwa province of Pakistan that contains the town of Chitral. It has an area of 14,850 km² and a population of 318,689 at the 1998 Census, which had subsequently risen to about 378,000 people by 2004. It has one of the highest mountains of the world,...

 in Pakistan. Downstream as far as Mastuj

Mastuj

Mastuj is a town of Chitral District in Khyber-Pakhtunkhwa province of Pakistan. It is located at 36°17'0N 72°31'0E with an altitude of 2359 metres ....

 it is known as the Yarkhun River. From there to its confluence with the Lutkho River just north of the important regional centre of Chitral

Chitral

Chitral or Chetrar , translated as field in the native language Khowar, is the capital of the Chitral District, situated on the western bank of the Kunar River , in Pakistan. The town is at the foot of Tirich Mir, the highest peak of the Hindu Kush, high...

 it is called the Mastuj River.