Bon Irau, with an elevation of , is the highest peak in the Tamrau Mountains and the highest point in the province of Southwest Papua outside of the Arfak Mountains. It is located in the north central region of the Bird's Head Peninsula and located around from the grassy Kebar Valley.
See also List of ultras of the Malay Archipelago
References WWF Bird Watching on Bird's Head, and the threats to the Vogelkop montane rain forests ecoregion. Accessed 5 March 2015 Arfak Mountains: Birding Hotspot of West Papua Accessed 5 March 2015