Valley of the Kings the actual tomb of Tutankhamun (KV62) in November 1922. Various expeditions have continued to explore the valley, adding greatly to the knowledge of the area. In 2001 the Theban Mapping Project designed new signs for the tombs, providing information and plans of the open tombs. The earliest tombs were located in cliffs at the top of scree slopes, under storm-fed waterfalls (KV34 and KV43). As these locations were filled, burials descended to the valley floor, gradually moving back up the slopes as the valley bottom filled with debris. This explains the location of the tombs KV62 and KV63 buried in
Valley of the Kings the valley floor. The usual tomb plan consisted of a long inclined rock-cut corridor, descending through one or more halls (possibly mirroring the descending path of the sun god into the underworld) to the burial chamber. In the earlier tombs, the corridors turn 90 degrees at least once (such as KV43, the tomb of Thutmose IV), and the earliest ones had cartouche-shaped burial chambers (for example, KV43, the tomb of Thutmose IV). This layout is known as 'Bent Axis', After the burial the upper corridors were meant to be filled with rubble and the entrance to the tomb hidden. After