
    The valley of Spiti derives its name from the Spiti River, which rises just
    below the 16,000 ft high Kunzum Pass. After flowing for about 60 miles, it
    joins the Sutlej River near the village of Namgiya in Kinnaur district. En
    route it is fed several streams - Pin Cholmo, Gyundi, Rahtang, Ulah, Lungse,
    Mane, Surahi, Hanze, Tagling, Thumpa Lumpa, Kaza, Lingti, Parechu and Tabo.
    
     Valley Of Barren Splendour
Deep inside the inner folds of the
    Himalays, behind the greater Himalayan ranges lies the valley of Spiti. The
    sheer starkness of its beauty with its dramatic rock shapes and colours and
    its distinct cultural identity gives it a unique character that makes it
    stand apart from most of the other valleys of the Himalayas.
     
     Huge mountains rise to very high elevations on either side of the Spiti
    River and its numerous tributaries. The valley has largely been influenced
    by the action of ancient glaciers. The river and its tributaries have
    deposited almost barren river terraces. The river attains peak discharge in
    late summers when snow on the mountains melts and it occasionally freezes in
    winter.
     
     The main settlements that have come up along the Spiti River and its
    tributaries are Hansi and Dhankar Gompa.