Yen Bai's large forest ranges supply valuable pomu, lat hoa, cho chi wood. Van Yen cinnamon, Suoi Giang tea, Tu Le glutinous rice are special products. The province owns well-known stone-pit in Luc Yen, too. Yen Bai has artificial ThacBaLake, a scenic spot as well as a historical place. The lake consists of 1,331 hill-islands, varies vegetation cover and a diverse ecological setting. In the middle of the lake stands the Mong Son Grotto, home of the Yen Bai Party Committee during the anti-American resistance. Coming to there, tourists are able to relax in the lake, climb the mountain and explore the forests. Visitors are attracted to Dong Cuong and Dai Cai temples. Archaeologists have found many remains of the Son Vi culture in the DongCuongTemple area. DaiCaiTemple was built on a large area covered with many green trees and beautiful riverside roads.