In 2002-2003, P. Christiaan Klieger, anthropologist from California Academy of Sciences, and photographer Dong Lin retraced their previous steps, and succeeded in making the first anthropological survey of the Hkakabo Razi region. On foot they reached Tahaundam, which is inhabited by about 200 Khampa Tibetans, including mountaineer Nyima Gyaltsen (see below).