Lang Bian Mountain (also called Lam Vien Mountain) has five volcanic peaks ranging in altitude from 2100m to 2400m. Of the two highest peaks, the eastern one is known to locals by the woman's name K'Lang; the western one bears a man's name, K'Biang. The upper reaches of the mountain are forested. Only half a century ago the verdant foothills of Lang Bian Mountain, now defoliated, sheltered wild oxen, deer, boars, elephants, rhinoceroses and tigers.

The hike up to the top of Lang Bian Mountain, from where the views are truly spectacular, takes three to four hours from Lat village. The path begins due north of Lat and is easily recognisable as a red gash in the green mountainside.
You do not need a permit to visit Lang Bian Mountain, though taking a guide along will certainly make the trip more interesting.