available. In addition, the Chongqing−Lichuan Railway from the Lichuan Railway Station on the Yiwan line connects the cities. A single line now connects Enshi with Beijing and Wuhan as well as many additional cities. The train between Beijing and Enshi takes approximately 24 hours and includes many stops along the way. The G42 Shanghai–Chengdu Expressway, routed along the same Yichang-Wanzhou corridor, is under construction. The Sidu River Bridge on that road has become the world's highest bridge. Xujiaping Airport is the only airport in Enshi. Economy The soil in Enshi is rich in selenium. Enshi is known as the "selenium capital of China" and is the world's sole independent selenium deposit. Selenium Square in the city is named after this rare element. The countryside has a diverse range of flora and fauna, including many Chinese herbs. Much of the mountain landscape is covered in virgin forest and is home to pangolins. Enshi locals are especially proud of their potato crops and consider the potato and tea crops to be the region's agricultural specialties. Enshi Prefecture possesses significant hydroelectric resources. Among major hydroelectric dams already completed, or under construction, within the prefecture are: Shuibuya Dam, on the Qing River in Badong County — the tallest concrete face rock-fill dam in the world. Jiangpinghe Dam, on the Loushui River, near Jiangpingh Village, Zouma Town, Hefeng County. Dongping Dam, in Wanjia Township (), Xuan'en County References External links Official website of Enshi government Prefecture-level divisions of Hubei Miao autonomous prefectures Tujia autonomous prefectures