sub-region has a subtropical climate with ample seasonal rains. The average temperature fluctuates between 20 °C and 25 °C depending on the altitude (max 35 °C, min 11 °C). Concept: The concept of the east side of the continental divide is straightforward: 1,000 m above sea level it is 4.9 °C cooler, and the subtropical cloud forest (Fluvial Yunga) follows the tropical rainforest (Anti). At 2,300 m, the climate transitions from subtropical climate to temperate climate (Quechua). The Tree line ends at 3,500 m and has an annual mean temperature of 10 °C. The region between the tree line and 4,000 m is called Suni or Jalca. Suni is a dry and cold region with many glacial valleys. Despite the harsh weather, crops such as quinoa, maca, qañiwa, broad beans and ulluku are cultivated here. Flora and fauna The flora (subtropical cloud forest) of the Yunga region is mainly composed by the Peruvian pepper tree, the Furcraea, white cabuya (Furcraea andina), the pitahaya and the Peruvian torch cactus (Echinopsis peruviana). The coca leaf is established in this region as well as the uña de gato ("cat's claw", Uncaria tomentosa). The most attractive sites of this warm refreshing region are its many orchid forests and beautiful valleys. The fauna in the Yunga region is characterized by the long-tailed mockingbird, or chaucato. Overview Andean Continental Divide Mountain Top: Mountain passes – 4,100 m Puna grassland Closed vegetation Sporadic vegetation Andean-alpine desert Snow line – about 5,000 m Janca – Rocks, Snow and Ice Peak Bolivian Yungas Human use In the early 20th century, the region was a major source for rubber and quinine. Now, coffee, citrus, and coca are important crops. People cultivate native plants like the canistel or eggfruit tree the lúcuma tree, the cherimoya or chirimoya, the guava or guayabo and the avocado or palta. The Afro Bolivian community is concentrated here. The Yungas Cocalera Revolution is based in the region. Its name derives from the one applied for the same mountain level by those who study the economic system of the prehispanic Andes. The Yungas also contains one of the most deadly roads in the world, called the "camino de la muerte," or Highway of Death. Due to the mountainous terrain an entrepreneurial coca harvester created a network of zip lines that permit rapid travel from peak to peak by farmers, referred to locally as flying men or bird