Nothing is known about this festival, but the Limi Yi are a very conservative Yi group living on the foot of Daxueshan around Wumulong Township in Yongde county.
The main festival ground might be some 10km north of Wumulong along the main road. Apparently, the festival has been moved by a week, according to internet resources. Here are a few, boring, pics from the 2011 event: http://www.yongde.gov.cn/E_ReadNews.asp?NewsID=10752