Middle Carboniferous Huanglong Formation

Upper Carboniferous Huanglong Formation

Huanglong Formation

Member 4 of Quantou Formation -Yaojia Formation

Caijiachuan Forest Farm in Huanglong Mountain

Huanglong

Huanglong and Chuanshan Formation

Huanglong coal field

Huanglong Coalfield

Huanglong gold deposit

Huanglong in Sichuan

Huanglong industrial park

Huanglong Mountain

Huanglong Mountain forestry region

Huanglong mountainous area

Huanglong Mountains

Huanglong Mountains of Shaanxi

Huanglong Nature Reserve

Huanglong Ravine