Introduction to Tieda Village: The altitude is 1517.1 meters. At the end of the Western Han Dynasty, a general who was dissatisfied with Wang Mang's usurpation of power set up a stronghold here to proclaim himself king. He built the gate with iron and built a wall with stones around it, so it was called Tieda stronghold. After thousands of years, the Tiezhai gate has rusted and turned into mud, but the stone walls still remain. Climbing the stone steps and entering the village, you can see many ruins.