The Lower Himalayan Range – also called the Middle Himalayas or Lesser Himalayas or Himachal – is a major east–west mountain range with elevations 3,700 to 4,500 m in the northernmost regions of the Indian subcontinent along the crest, paralleling the much higher High Himalayas range from the Indus River in Pakistan across northern India, Nepal and Bhutan but then the two ranges become increasingly difficult to differentiate east of Bhutan as the ranges approach the Brahmaputra River. Wikipedia