Baiyer River (Paiyer River - Wara Paiyer) in Western Highlands Province, PNG

Baiyer River is one of the largest River in the province. It comes out from a cluster of boulders as a little spring located right at the top of Mount Mul (Mul Komonga). The spot is decorated with grasses and colourful flowers that spreads the top of the mountain. The starting name of the creek is known as Paiyer which eventually known along certain kilometres from Mul - Baiyer and then it is known as Baiyer River from Baiyer to Lumusa and extends further to Lai and Sepkik River.

On the other side of the same mountain range is a spring known as Kuma. Kuma is separated by another mountain range and there comes out the Gumanch River. Kuma and Gumanch meet together at Wekmulg near Kwip and thereafter the river is known as Gumanch until it meets Waghi River.

There are also several varied coloured pools that  naturally exist just at the side of the mountain top of Mul.

The Paiyer River flows along the thick forest of Mul until it reaches first village known as Marapana then followed by Tagla and Keiya Ralg. It then follows further down and meet tributaries known as Pup and Kela at Wara Village. It flows along the tribes of Mele and Nenga. The next known tributaries are Ramund, Kintip, Petaka, Kumbula, Kunim, Hurmil that extend to the tribe of Kumdi along Rugli and Nengil, Boor, Kombolopa.

As the tributaries increase in numbers along its gravitational flow, the size and current of the river increases. At the head waters, it is easy to cross over but at certain kilometres after Bukapena Village, it is quite a challenge to cross the Paiyer river easily.

The Paiyer River reaches  miles along the Mul Baiyer and Lumusa. The name Paiyer River changes to Baiyer River once it reaches Baiyer and Lumusa Districts.

The next tribes that the Baiyer River reaches are Enga Kumbu, Enga Maip, Ukuni, Kopi, K-Witi and several other tribes of Enga Baiyer along Kaldeta, Rupanda, Baiyer Zoo, Kumbris etc.

The Baiyer River further extends North East and meets Lai River, Muka River along  Koles, Wadji, Tamo in the East Sepik Province, Sipisipi, Bun, Biwat and eventually meets the Sepik River at Arangumam Moim and Kambrindo Villages near Angoram in the East Sepik Province of Papua New Guinea.

Baiyer River starts at Mount Mul (Mt.Hagen), in the Mul District of Western Highlands Province, PNG. Likewise, Purari River starts from Mount Mul.

Map of Mount Mul