Introduction to Niulu Tianmen: There is a Tianmen on the top of Niululing's towering Leigong Ridge. According to legend, thousands of years ago, the jungle here was dense, blocking the sky and the sun, and the mountains were high and the roads were steep. The Li and Miao compatriots living in the mountains used cattle as a means of transportation, and they had to climb high peaks to carry goods to other places for trade. Therefore, Li and Miao leaders led the masses to carry forward the spirit of "The Foolish Old Man Moves Mountains" and dug mountains for generations, finally opening up this road. Later generations called it "Niulu Tianmen".