▁K ha o ▁K he uan ▁Lan , ▁ 7 8 2 ▁m ▁high ▁K ha o ▁Cham ▁D ot , ▁ 7 1 8 ▁m ▁high ▁K ha o ▁Chal ong ▁T ong , ▁ 7 4 5 ▁m ▁high ▁K ha o ▁Chan ▁Lu ang , ▁ 7 2 2 ▁m ▁high ▁K ha o ▁L om , ▁ 7 2 2 ▁m ▁high ▁K ha o ▁S aw ong , ▁ 7 2 1 ▁m ▁high ▁K ha o ▁W ong ▁Chan ▁Da eng , ▁ 6 8 9 ▁m ▁high ▁K ha o ▁Ph rik , ▁ 6 9 5 ▁m ▁high ▁K ha o ▁Som ph ot , ▁ 6 5 7 ▁m ▁high ▁K ha o ▁K rad on , ▁ 6 7 6 ▁m ▁high ▁K ha o ▁In th aya , ▁ 6 8 3 ▁m ▁high ▁K ha o ▁Mot ▁Ng am , ▁ 6 5 5 ▁m ▁high ▁K ha o ▁Pla i ▁K hl ong ▁K um , ▁and ▁ 5 7 5 ▁m ▁high ▁K ha o ▁S ada o . ▁ ▁The ▁northern ▁limit ▁of ▁the ▁Ph etch ab un ▁mass if ▁is ▁not ▁clearly ▁defined , ▁roughly ▁beginning ▁south ▁of ▁the ▁ 1 6 th ▁parallel ▁north ▁where ▁the ▁ranges ▁forming ▁the ▁Ph etch ab un ▁system ▁become ▁a ▁group ▁of ▁scattered ▁mountains ▁of ▁less er ▁height , ▁rarely ▁sur pass ing ▁ 8 0 0 ▁m , ▁extending ▁south wards . ▁The ▁eastern ▁mountain ▁chain ▁of ▁the ▁Ph