Jul 05, 2022 · The total length is 3.7 kilometers, with an investment of more than 6 million yuan. The 453-meter road is sandwiched between the stones cost more than 4 million yuan and was built in 2012. At that time, it was unsurfaced. In 2019, it was paved, and the cement rails were also built. The slope is steep, the curve is sharp, and the road is narrow.