Mount Moriah is located to the northeast of Mount Zion, in the southeast side of Jerusalem between the Kidron Valley and Tyropoeon Valley. It is 2440 feet high. The Bible sometimes calls Mount Moriah by the name of Zion as well. King Solomon increased the size of Mount Moriah who built a high platform and wall on three sides (east, south, and west) and this formed an extremely high summit on the southeast corner. This summit is where the Temple was built, the highest point was the location of the Holy of Holies, the same spot where Abraham was tested to offer his son Isaac (Gen. 22:2). The southern slope of Mount Moriah, extending from the southern wall down to the point where the three valleys meet, was called Ophel (Neh. 3:26, 27).