Kangchenjunga (8'586 m), highest peak of India and 3rd highest on earth.
Cities and towns of Sikkim.
The thumb-shaped state of Sikkim is characterised by wholly mountainous terrain. Almost the entire state is hilly, with the elevation ranging from 280 metres (920 ft) to 8,585 metres (28,000 ft). The summit of the Kanchenjunga is the highest point which falls in Nepal among the top 8 mountains residing on Nepal. For the most part, the land is unfit for agriculture because of the precipitous and rocky slopes. However, certain hill slopes have been converted into farm lands using terrace farming techniques. Numerous snow-fed streams in Sikkim have carved out river valleys in the west and south of the state. These streams combine into the Teesta and its tributary, the Rangeet. The Teesta, described as the "lifeline of Sikkim", flows through the state from north to south. About a third of the land is heavily forested.
The lofty Himalayan ranges surround the northern, eastern and western borders of Sikkim in a crescent. The populated areas lie in the southern reaches of the state, in the Lower Himalayas. The state has twenty-eight mountain peaks, twenty-one glaciers, 227 high-altitude lakes, including the Tsongmo Lake, Gurudongmar, and Khecheopalri Lakes, five hot springs, and over 100 rivers and streams. Eight mountain passes connect the state to Tibet, Bhutan and Nepal.