Outer Himalayas or the Shiwalik Range:
- It is situated to the South of Lesser Himalayas.
- Continuous from J&K till Arunachal Pradesh, Known by Different namesJammu Hills in Jammu,Arunachal –Abhor ,Miri,Mishmi,dafla etc
- Newest part of Himalaya. Avg height (600 m to 1500 mts)
- Formed after Himnalayas ,so the river was obstructed initially,hence lakes were
formed but later as the river cut through then water drained away so plain is left
,which are called Dun or duar . - Valley Between the Shiwalik range and lesser Himalayas is known as Dun (Dehradun) In west and Duar (Haridwar) in the east.