the jade dragon snow mountains contain the glacier nearest of the equator on the north hemisphere. the landmarks 4,506 m and 4,680 m at the end of the glacier can be achieved through the cable car from ganhaizi (tibetan for dry lake, a grassland with conifers at 3,400 m). the mountain desert begins around 4,000 m. the three parallel rivers of yunnan (unesco world heritage site) encompasses the watershed areas of the yangtze (jinsha), mekong (lan cang) and salween (nujiang) rivers and is the joint of the palearctic ecozone and the indomalaya ecozone.