Baspa Valley is a river valley named after the Baspa River

Baspa River

Baspa River rises near the Indo-Tibetan border and forms the Baspa Valley - one of the most beautiful in Himalayas. The Chung Sakhago Pass lies at the head of the valley. It is fed by the perennial glaciers and shares the catchment area with the Ganges.The gurgling Baspa River in Sangla valley...

. It lies in the Kinnaur District

Kinnaur district

Kinnaur is one of twelve administrative districts of Himachal Pradesh, India. The district is itself divided into three administrative areas – Pooh, Kalpa, and Nichar – and has five Tehsils or counties. The administrative headquarter for Kinnaur district is at Reckong Peo. Due to the...

 of Himachal Pradesh

Himachal Pradesh

Himachal Pradesh is a state in Northern India. It is spread over , and is bordered by the Indian states of Jammu and Kashmir on the north, Punjab on the west and south-west, Haryana and Uttar Pradesh on the south, Uttarakhand on the south-east and by the Tibet Autonomous Region on the east...

, India

India

India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

. Sangla is a major town in the Baspa Valley, and the valley is popularly known as the Sangla valley.

The Baspa river is a tributary to the Sutlej

Sutlej

The Sutlej River is the longest of the five rivers that flow through the historic crossroad region of Punjab in northern India and Pakistan. It is located north of the Vindhya Range, south of the Hindu Kush segment of the Himalayas, and east of the Central Sulaiman Range in Pakistan.The Sutlej...

 river, and one may approach the Baspa Valley by taking a diversion at Karcham, which is in the Sutlej valley.