Most of the people of the state reside near Mangan, the district headquarters which is about above sea level. Further north the elevation increases with the vegetation turning from temperate to alpine to tundra. Temperatures range from about 25° to below −40° in the extreme high reaches where the altitude is in excess of 6,000 metres. Kanchenjanga is the highest peak at over 8,000 m, straddling its western border with Nepal and can be seen clearly from the town of Singhik.