Central Kalimantan: Dist Murung Raya; Muller Range behind Tumbang (Village) Naan, near Muara Sopan, ca. 170 m altitude, along Sungai Joloi, almost the halfway point, about 30 minutes walk from Muara Sopan (00°12'22 N, 113°31'23 E) to Camp II, Sungai (River) Lapangan (00°11'00 N, 113°31'59 E), under tropical rain forest