Situated at a height of about 4,061 m above sea level, Longching is one of the main towns in Mon District
. It is to the south of Mon
and about 17 km from Tamkhung. Konyaks
comprise most of the population here.
Towns near to Longching are Chantongia (24 km) in the west, Chingtang (11 km) in the north, Chen (18 km) in the east and Yangching (12 km) in the south.
Simaluguri Junction Railway Station in Assam is the closest railway station.