Nepal is one of the richest countries in the world in terms of bio-diversity due to its unique geographical position and altitude variation. The elevation of the country ranges from 60 meters above sea level to the highest point on earth, Mt. Everest at 8,848 meters, all within a distance of 150 kilometers resulting in climatic conditions from sub-tropical to arctic. This wild variation fosters an incredible variety of ecosystems, the greatest mountain range on earth, thick tropical jungles teeming with a wealth of wildlife, thundering rivers, forested hills and frozen valleys.