Introduction to Niulang Holy Mountain: Niulang Holy Mountain is the guardian vajra of the mountain gate (north gate of the sacred mountain) of the "Three Parents Snow Mountain", and is the four guardian vajra of the "three parents snow mountain". The altitude of Niulang Holy Mountain is 4760 meters. , is also the guardian mountain of "Ren Village and Ye'erhong Village" and is the only way to enter the protected area. At the foot of the mountain is the beautiful small mountain village of Ye'erhong Village.