Tengchong

Tengchong (Chinese: 腾冲; pinyin: Téngchōng) is a county-level city of Baoshan City, western Yunnan province, People's Republic of China. It is well known for its volcanic activity. The city is named after the town of Tengchong which serves as its political center, previously known as Tengyue (Chinese: 腾越; pinyin: Téngyuè) in Chinese. English language sources of the late nineteenth and early twentieth centuries use names such as Teng-Chung, Tingyueh, Teng Yueh, Momein and Momien. It borders with Myanmar in the northwest for 151 km (94 mi). By road, it is 650 km (400 mi) west of the provincial capital, Kunming, and 170 km (110 mi) westward from Baoshan's urban area. Tengchong marks the southwestern terminus of the Heihe–Tengchong Line, an imaginary line significant in geography that divides the area of China into two parts with contrasting population densities.