The average altitude of the county is above sea level. The county is located in the average altitude ranging from above seas level. It stretches from south of Kongpo and Bomê County through the lower Yarlung Tsangpo River upto Arunachal Pradesh, surrounded by high mountains: the tallest is Namcha Barwa at ). Pemako has lush vegetation and many species of wild animals. Unlike other parts of Tibet, it receives plenty of rain, and has diverse biomes: there are subalpine coniferous forests in the north and temperate coniferous forest in the south in the low-lying area of the Yarlung Tsangpo gorges.