The city of Dehradun mainly lies in Doon Valley and is at a varying height from 410 m in Clement Town to above 700 m at Malsi which is 15  km from the city. However, the average elevation is 600m above sea level. Malsi is the starting point of Lesser Himalayan Range that extends to Mussoorie and beyond. Jaunsar-Bawar hills in Dehradun district rises to 3700m above sea level. The hilly region of Mussoorie goes up to a height of 1870–2017 metres above sea level. Its geomorphological and meteorological characteristics make it prone to a number of natural hazards. Beside earthquake, the region is frequently devastated by landslides, cloudbursts, flash-floods, cold waves and hailstorms.