The Dok Bua Tong ( may be classified as wild sunflower ) will burst into full bloom in early winter during November - December, painting the entire hilly area over 1,000 rai of Doi Mae U-Kho inbrilliant yellow draw flocks of visitors to khun Yuam district.Camping sites arranged during the Bua Tong Bloom Festival, is 26 Km. from the district on Highway No. 1263.