Because starting from Zongga Town, Jilong County, the car has been driving down the valley, and the altitude has dropped from more than 4,000 meters to nearly 2,000 meters. Such a great altitude difference has created the biodiversity of Geelong Valley, including spruce, weeping willows with soft branches, butterflies with dead leaves, red wild fruits, white-headed langurs sitting on the roadside enjoying the traffic, looming snow-capped mountains in the distance and steep cliffs. 1 more hours later, the altitude dropped to the lowest point, and rows of neat houses came into view. This is the seat of Keelung Town and an inseparable part of Keelung Valley. Walking into Jilonggou, you will find that the most complete primitive natural ecology has been maintained here, like a paradise where people's souls will be hooked away.