Introduction to the winding mountain road: Erlang Mountain has high mountains and dangerous roads, and the original ecological environment is well protected. There are many kinds of animals and plants, the mountains are majestic and the water is beautiful, primitive and simple. The winding mountain road is steep and spectacular, and climbing the mountain in winter is even more difficult and dangerous. After the Erlangshan Tunnel is opened to traffic, the former winding mountain highway will be a good place to develop adventure activities.