Day 20] Huanglong is known as the "four musts" of color pool, snowy mountains, canyons, forests, plus beach flow, ancient temples, folk customs called "seven musts". The scenic spot is composed of Huanglonggou, Danyunxia, Henigou, Xuebaoding, snow mountain beams, red star rock, Xigou and other scenic spots. The main landscape is concentrated in Huanglonggou, about3.6 kilometers long, which is covered with calcium carbonate deposits. It is arranged in a terraced pattern, and enjoys the reputation of "world wonders" and "world's Dianchi Lake" with rich animal and plant resources.

Huanglong Township is a small mountain town, quite rich characteristics. The gentle hillside is set with pink buckwheat fields, the roadside is covered with green barley, the log-built fence follows the winding dirt road, and leads to the virgin forest in the distance. The Tibetan-style hanging towers are scattered on the roadside, and the light blue smoke of boiling milk tea is covered. Herds and sheep are hidden. The main residents of the township are the Han people who have migrated to adapt to the environment. For a long time, they have obvious Tibetan characteristics in housing construction and food, but the daily customs of the Han people still maintain the habits of the Han people and form a more unique folk customs. If visitors to the local farmhouse, they will be warmly treated, taste butter tea, drink a bowl of green wine, and then ride the owner's high-headed horse to the mountain pasture, which can fully appreciate the pastoral scenery here.

The "Four Ditch Scenic Area" is about 12 kilometers away from Huanglonggou. It is an open ancient glacier valley. The ditch mouth area is a flat and open flood terrace. The antique deep mountain town Honglong Township is here. The scenic area is 2700-4200 meters above sea level. The terrain is complicated and variable.

The scenic spot is located on the northwest plateau of Sichuan, at the foot of Lushan Mountain. The traffic is not very convenient. The mountains are surrounded by lush vegetation. There are many charming Haizi and Huacalium pools. The natural scenery is beautiful and there are not many tourists.

Songpan is Songzan dry cloth to pick up Wencheng Princess into Tibet where the story is many, the small city is beautiful, Huanglong scenery is the painter's ink color box, natural carving.