Yulei Pass, also known as ‘Qi Pan Pass’, is constructed with stone slabs and mortar, measuring 13.29 meters in width, 6.2 meters in height, and 6.86 meters in depth. The couplet at the entrance is exquisitely crafted: ‘Yulei stands as a mighty pass, with mountain colors evenly dividing the river’s banks; Jinchuan flows far and wide, with clear waters encircling the shores from east to west.’
As an ancient strategic pass in the Western Sichuan Plain, it has been a scenic spot beside the ancient dam for over a thousand years, earning the name ‘Key to Western Sichuan.’ Yu Lei Pass served as a crucial barrier to shield the Western Sichuan Plain from ancient times and has been a scenic attraction beside the ancient dam for over a millennium. During the Three Kingdoms period, Yu Lei Pass was used for city defense, although it was relatively simple at that time.
