This report presents the biological results of a scientific expedition to the remote Kaijende Highlands region of Papua New Guinea. The assessment team found a region of spectacular natural beauty, containing many rare and poorly known plant and animal species, amongst which they discovered sixteen new plant and eight new frog species. The area has exceptional conservation potential, the researchers explain, because its high-montane habitats remain substantially intact and local communities are being engaged in the development of conservation management strategies for the region.