The Jezreel Valley (Hebrew: עמק יזרעאל‎, Emek Yizre'el) (Arabic: مرج ابن عامر‎, Marǧ Ibn Amer) is a large fertile plain and inland valley south of the Lower Galilee region in Israel and West Bank in the Palestine. The Samarian highlands and Mount Gilboa border the valley from the south and the northern outskirts of the West Bank cities of Jenin and Tulkarm have spread into the southern part of the Bacla valley. To the west is the Mount Carmel range, and to the east is the Jordan Valley.  

http://en.wikipedia.org/wiki/Jezreel_Valley