Ya'an horn river, even in the eyes of Sichuan people is a little-known attraction, this is a nature reserve, in Ya'an Tianquan County, Ya'an is not only Bifeng Gorge and Shangli worth going. Lamb River belongs to Erlang Mountain National Key Scenic Area, the forest coverage is very high, the mountains are undulating, the canyons are numerous, and the original is simple. The best season to go is summer and autumn, summer is a summer resort, autumn red leaves, although not as good as Miaro and Guangwu Mountain, but also quite large, and still original ecology. Take the shuttle bus to Ya'an at Chengdu Shiyangchang Station. There are many trains. Go to Ya'an Tourist Station and transfer to Tianquan's CMB. There is a direct car to the horn river in Tianquan. It is more troublesome and more convenient to drive by yourself. It takes only an hour to get from Chengdu to 3.5. The ticket for the horn river is 60 yuan, and the sightseeing car is 20 yuan. They are all military jeeps. They can sit more than ten people and are very distinctive. The horn river scenic spot is very suitable for hiking. The 10-kilometer gravel road, 2-kilometer plank road and all the way streams can often see wild monkeys, but don't provoke, the monkeys are too wild.