Jammu is one of the three administrative divisions within
Jammu and Kashmir, the northernmost
state in
India. It consists of the
districts of
Doda,
Kathua,
Jammu,
Udhampur,
Rajouri,
Ramban,
Reasi,
Samba,
Kishtwar and
Poonch. Most of the land is hilly or mountainous, including the
Pir Panjal Range which separates it from the Kashmir Valley and part of the Great Himalayas in the eastern districts of Doda and Kishtwar. Its principal river is the
Chenab.
Chenab Valley is another important division in Jammu region.