Karewas are lacustrine deposits (deposits in the lake) in the Valley of Kashmir and in Bhadarwah Valley of the Jammu Division also known as Jhelum valley.

Explanation:

Karavas are lacustrine deposits in the Kashmir Valley and in the Jammu Division Valley of Bhadarwah. These are the flat mountains that border on both sides of the Kashmir Valley. They are characterized by mammalian remains and turf.