A marshal presides over the ancestor worshipping ceremony during Yi New Year festival in Hushan Village of Qingzhen City, southwest China\'s Guizhou Province, Oct. 27, 2011. Thousands of people of Yi ethnic group from the provinces of Yunnan, Sichuan and Guizhou arrived at Hushan to celebrate the Yi New Year festival Thursday. As the most important traditional festival for the people of Yi ethnic group, Yi New Year festival is celebrated after autumn harvest every year in accordance with the Yi calendar.