In early June 2019, we came to Heishicheng to photograph Gongga Mountain and experienced this magnificently astronomical phenomena.
China Tours Including Gongga Mountain (Minya Konka)
https://www.tibet-tours.com/792-Trekking-at-Gongga-Mountain-in-West-Sichuan.html
https://www.tibet-tours.com/Kham-Amdo-Tour.php?id=1285
Photo by Min Zhao