Professor Ritmeyer, a world renowned expert on the Temple Mount wrote me that he believes it will be possible to locate the underground pile of stones and rubble from the altar, and the drainage well, which was in the SW corner of the altar, in two weeks of digging with 10 trained archeology assistants.
Early research by Benjamin Mazar, the Israeli archaeologist who directed the excavations adjacent to the Temple Mount, and recent research by Leen Ritmeyer, who served as chief architect for the excavations, have produced diagrams of the locations of both the First and Second Temples, based on physical evidence remaining at the site.
has done extensive study of the rock
within the Muslim Dome of the Rock
and concluded that not only is it the Foundation Stone, but that foundation trenches and the walls of the Holy of Holies, and even the place where the Ark of the Covenant rested, are still discernible.
Most of the Orthodox Jews presently preparing for a Temple have agreed upon this latter location.