Nahal Og or Wadi Og (Hebrew: נחל אוג‎), or Wadi al-Muqallek, also spelled Wadi Muqallik (Arabic: وادي مكلك‎) is a winterbourne stream on the West Bank that drains the eastern slopes of the Mount of Olives range east of Jerusalem and runs for 30 km till the Dead Sea.[1][2] It is the northernmost of the streams that flow from the Judaean Desert into the Dead Sea.[1]