Valley of Elah in Wikipedia
            The Valley of Elah, "the valley of the oak or terebinth" [1] 
(Hebrew: עמק האלה Emek HaElah) (Arabic Wadi es-Sunt), best 
known as the place described in the Bible where the Israelites 
were encamped when David fought Goliath (1 Sam. 17:2, 19). It 
was near Azekah and Socho (17:1). On the west side of the 
valley, near Socho, there is a very large and ancient tree of 
this kind, 55 feet in height, its trunk 17 feet in 
circumference, and the breadth of its shade no less than 75 
feet. It marks the upper end of the valley, and forms a noted 
object, being one of the largest terebinths in the area.
The Valley of Elah has gained new importance as a point of 
support for the argument that Israel was more than a tribal 
chiefdom in the time of King David. At Khirbet Qeiyafa, 
southwest of Jerusalem in the Elah Valley, Prof. Yosef 
Garfinkel has discovered a fortified Judahite city from the 
Iron Age IIa (1000–900 B.C.). Pottery styles and carbon dating 
place occupation in the early tenth century. The 
fortifications have been said to support the Biblical account 
of the United Monarchy at the beginning of Iron Age II.[2]
                          
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