Transportation of Huanglong is very good and there are many routes for you to choose from, including for example:
Chengdu-Mianyang-Jiangyou-Pingwu-Jiuzhaigou-Huanglong
Chengdu-Dujiangyan-Wenchuan-Maoxian-Songpan-Huanglong
Chengdu-Guangyuan-Zhaohua-Wenxian-Jiuzhaigou-Huanglong
Chengdu-Guangyuan-Zhaohua-Wenxian-Jiuzhaigou-Muni Valley.
With good telecommunications facilities, mobile phones can be used there. There are also public payphones and internet cafes that bring you even more convenient means for communication.
Huanglong can be arrived from Jiuzhaigou on the north, Songpan and Chengdu on the south. Most travelers visit Huanglong after Jiuzhaigou by taking the 7:10am direct Huanglong bus(Y42,2.5hrs) at Jiutong Bus Station nearby Jiuzhaigou Park. In case you missed the direct bus, the alternative is to take oen of the Songpan-bound buses (between 7:20~7:30am) and get off at Chuanzhusi(2hrs).
A collective van from Chuanzhusi to Huanglong costs around Y20/head, 40minutes. Or, you can charter a taxi / van from Jiuzhaigou or Songpan to Huanglong without stopping in Chuanzhusi in 2.5hrs or 1hr respectively. Round trip is around Y200/taxi or Y400 / 6-seat van from Jiuzhaigou(same price Jiuzhaigou-Huanglong-Songpan),Y150~300 from Songpan.
Admission Fee: Y in peak season (April 1-November 15) ;Y in low season (November 16- March 31)
Opening Hours: 09:10 to 16:40