Dehong autonomous prefecture. Baidu map shows that mangshi Xinwanchang Food Street is located in Hedong Road, mangshi, Dehong Autonomous Prefecture, and its business scope includes food sales and catering services. Mangshi, known as "Menghuan" in Dai language, is the capital of Dehong Autonomous Prefecture. It is about 765,438+km long from east to west and 62 km wide from north to south, with a total area of 2,900.95438+km.