Nepal lies between 80° 4' and 80° 12' East Longitude and 26° 22' and 30° North Latitude. The total area of Nepal consists of 147181 s1.km. It borders with Tibet Autonomous Region of the People's Republic of China to the north and Indian States of Sikkim and West Bengal to the east, Bihar and U.P. to the South and U.P. to the West. It has a long rectangular shape with almost 885 km. east-west length and its breadth varies from 145 to 241 km. north-south. Within this narrow breadth it has got a dramatic diversification in topography as well as in climate. It' average altitude from the sea level varies from the south to above 8,000m. in the North. According to the altitude this country can be divided into three regions

1) Himalayan Region : This region lies between 4,877m., and 8,848 m. with snowline running around 4877m. It includes 8 of the existing 14 summits in the World which exceed an altitude of 8,000m. They are (1) Mount Everest-(Sagarmatha) -8,848m.; (2) Kanchanjunga -8,586m. (3) Lhotse -8,416m. (4) Makalu -8,463, (5) Cho Oyu -8201m. (6) Dhaulagiri -8167m. (7) Manaslu -8163m. and (8) Annapurna I -8091m.

2) Mountain Region : This is the most populated and cultural part of the Nepalese topography. It covers about 64% of total land area and inhabitated by 55% of the total population. Its terraced land cultivation adds the charm of the beautiful landscape of the Himalayas. The altitude of Churia range varies from 610 m to 1524 m. and the Mahabharata mountain region varies from 1524 to 4877m. The most famous Kathmandu Valley and Pokhara Valley lies in the altitude of 1350 and 850m. respectively.

3) Terai Region : This narrow stripe of low land Terai Region lies on the southern most part of the country, running from east to west with the varied breadth of 26 to 32 Km. and with average altitude of 300m. above sea level. This region lowers about 17% of the total land area comprising to dense forest and most fertile farming land.