The Hills area XX (Pahar in Nepali) is surrounded by the mountains to the north and south area of the Tarai. Its altitude ranges from 1,000 to 4,000 meters, and includes large valleys such as Kathmandu, the most densely populated of the kingdom. All this geographical space has been dominated by two mountain ranges of medium height, known as the Mahabharat Lekh and Siwalik Range. These two channels allow both exist among a large number of small valleys, the cradle and political and cultural center of the country. This area has always been a place of residence despite continuing immigration from Tibet and India. Notwithstanding the above, this area is the most concentrated population of the kingdom, according to the year 1991. While this area contains some summits reaching 2,500 meters, the area is also sparsely populated, given the topography of the area and climatic difficulties.The Hills area has become a valuable mosaic of natural and cultural wonders, changed every day by the geological and human strength. These hills, sculpted by the work of human beings that inhabit, it has become a vast area with terraces of crops heavily exploited. Despite this, up to half of the 1990s the area had a significant food deficit. This, however, agriculture being the main activities in the area, like cattle grazing and seasonal migration of workers. Most people in rural areas survive on less productive land, covered with great hills. The poor economic situation caused by shortages of arable land is compounded by the short growing season of plants, whose sole cause is the height of the region. As a result, farmers in the Hills area has a very small window of opportunity when you can perform multiple cropping in their terroirs.Families must adapt to the altitude, which marked seasonality in the field, the climate, cultivating and harvesting what they can only they can. During the growing season which prevents much of the farmers become street traders, working in any activity possible in order to supplement his salary with the product of the field. This dependence on monoculture is more serious in the mountain region.