Kidron Valley (classical transliteration, Cedron, from , Naḥal Qidron, literally Qidron River; also Qidron Valley) is the modern name of the valley originating slightly northeast of the Old City of Jerusalem, which then separates the Temple Mount from the Mount of Olives, and ending at the Dead Sea. Beyond Jerusalem it continues in a general south-easterly direction through the Judean desert in the West Bank, reaching the Dead Sea near the settlement of Ovnat, and descending along its course. In ancient Hebrew sources, as well as in Arabic, different segments of the valley bear different names. Arabic names include وادي الجوز, Wadi el-Joz, 'Valley of the Walnut', for the upper segment near the Temple Mount; and Wadi en-Nar, 'Fire Valley', for the rest of it – with at least the segment at the ancient Mar Saba ('Saint Sabbas') monastery also known in the 19th century as Wadi er-Rahib, 'Monk's Valley'. In its upper part, the neighbourhood of Wadi al-Joz bears the valley's Arabic name. The settlement Kedar, located on a ridge above the valley, is named after the valley's Hebrew name. The Hebrew Bible apparently calls the upper course Emek Yehoshafat, the "Valley of Josaphat". It appears in Jewish eschatologic prophecies, which include the return of Elijah, followed by the arrival of the Messiah, and the War of Gog and Magog and Judgment Day. The upper Kidron Valley holds Jerusalem's most important cemetery from the First Temple period, the Silwan necropolis, assumed to have been used by the highest-ranking officials residing in the city, with rock-cut tombs dating between the 9th and 7th centuries BCE. The upper Kidron Valley segment north of the Old City was one of the main burial grounds of Jerusalem in the Second Temple period, where hundreds of tombs have survived until today, while the segment east of, and opposite the Temple Mount, boasts several excellently preserved monumental tombs from the same period. Several of the Second Temple period tombs were also used later in time, either as burial or as shelters for hermits and monks of the large monastic communities which inhabited the Kidron Valley during the Byzantine Empire period (4th-7th century). The ancient tombs in this area attracted the attention of ancient travelers, most notably Benjamin of Tudela. A source of confusion is the fact that the modern name "Kidron Valley" (Nahal Kidron in Hebrew) applies to the entire length of a long wadi,