A 2009 account places the Regong June Festival in the sixth lunar month, when crops along the Longwu River were nearing maturity and pasture grass was lush. It says one sequence began on the seventeenth day of the month at Siheji, then continued in dozens of Tibetan and Tu villages. Each village had a shrine for local and regional protective deities, giving the festival a set of distinct places rather than a single central stage.
From the journal
From Siheji Shrine to a 24-Village Celebration
A 2009 account begins the sixth-month Regong festival at Siheji’s village shrine; a separate 2017 report recorded a celebration shared by 24 villages.

A June gathering begins at Siheji
A local sequence, a wider celebration
The same account says village observances could last from two to five days. A later report from 2017 described June Festival celebrations expanded to 24 villages. The two dated records show the gathering at different scales: a sequence that moved from shrine to shrine and a wider celebration shared among communities. The Longwu River valley provides the geography for both, while each village remains a setting of its own.