Dakpa Sheri[c] (Tibetan: དག་པ་ཤེལ་རི, Wylie: dag pa shel ri, THL: dak pa shel ri,[7] Chinese: 达瓜西热; pinyin: Dá guā xī rè), explained as "Pure Crystal Mountain" and also known as Tsari (Tibetan: རྩ་རི, Wylie: rtsa ri), is a mountain in the eponymously named Tsari region in Lhöntse County of Tibet's Shannan Prefecture.

[10] The word Tsari (Tsa-ri) has been used for both the geographical area surrounding Dakpa Sheri as well as the mountain itself.

In 1999, Toni Huber published his thesis on The Cult of the Pure Crystal Mountain.

[9] According to the Indian official T. S. Murty, Dakpa Sheri is located on the water-parting line of the Yume Chu and Pindigo rivers.

Tibetan Buddhists consider Tsari sacred, in the same league with Mount Kailash.

In addition, there is a larger pilgrimage that takes place once every 12 years that goes through the tribal territory of Assam Himalaya.

Tibetan officials and pilgrims numbering about 20,000 assembled in the town to make arrangements for the pilgrimage.

The area was historically populated by the Mara clan of the Tagin tribe of Arunachal Pradesh.