Kyllang Rock is a steep dome of red granite rising to an elevation of about 5400 ft above sea level. It is located at Mawnai, about 11 km from Mairang, in West Khasi Hills District
According to geologists, this rock is about several million years old. The rock can be accessed from the northern and eastern flanks. The southern flank is inaccessible because of its slope exceeds 800 over an incline of about six hundred feet.
It is believed that the rock possesses a sort of magnetic field, so no one will fall from the slope. Enormous detached blocks of rock features the southern side and dense forests in the northern side. The forest is thickly populated with age-old red Rhododendron trees and oaks along with white Rhododendron trees, which are not found elsewhere.
The southern side of Kyllang Rock is encumbered with enormous detached blocks of rock, while its northern side is clothed with dense forests, containing age-old red Rhododendron trees and oaks besides bushy, white Rhododendron trees.
Kyllang rock lies 78 km from Shillong.