The Foja Mountains (Foja Range, Foya Mountains) (Indonesian: Pegunungan Foja) are located just north of the Mamberamo river basin in Papua, Indonesia. The mountains rise to 2,193 metres (7,195 ft), and have 3,000 square kilometres of old growth tropical rainforest in the interior part of the range. The Foja forest tract covers 9,712 square kilometers and is the largest unroaded tropical forest in the Asia Pacific region.