Heijing is located 65 kilometers northwest of Hefeng County, Chuxiong Yi Autonomous Prefecture, Yunnan Province, on the banks of the Longchuan River. It is famous for producing Gong salt in the Han and Tang eras. Yunnan produces not much salt, and Heijing is one of only 9 salt wells in Dali. The ancient town of Heijing has a long history, a prosperous economy and a deep cultural rhyme. It is known as the "living fossils of the lost salt capital and Ming and Qing architecture". The ancient town is surrounded by mountains and rivers. It is a small town that has been closed in the Longchuan River Valley for almost a century. It is one of the four ancient towns in Yunnan. Unlike the small bridges and flowing water in the ancient city of Lijiang, the ancient town of Heijing has a few more ancient leisure and love. "Curling paths and mountains are dangerous, and the mountains want to pick up the sky. Wanshan faces and faces, and a water sends stream smoke." The uneven sand and stone roads and mottled stone walls record the vicissitudes of the years, and the endless rivers tell the glory of the ancient town... The folk customs here are simple, the scenery is beautiful, and it is a isolated place. Over 2000 years, the economic and cultural prosperity has left many monuments and attractions for Kuijing. Today, the ancient town still retains a relatively complete traditional urban pattern, residential buildings, religions, archways and other buildings. There are 21 cultural relics protection units, which are famous cultural relics in Lufeng County and even Chuxiong Prefecture. After thousands of years, the ancient town style is still the same, the historical veins are clear, and the characteristics are distinctive.