Ancient Egyptian site of the remains of the first true Egyptian pyramid complex, near Memphis on the west bank of the Nile River in the Fayyum region. It is the earliest-known pyramid complex with all the parts of a 'normal' Old Kingdom (c 2575-c. 2130 BC) funerary monument. These parts included the pyramid itself, a mortuary temple, and a sloping causeway leading to a valley temple built near the Nile River. The pyramid is usually ascribed to King Huni (c 2650-2575 BC), last king of the 3rd Dynasty, but completed by his successor Snefru. The pyramid is also associated with mastabas of the early 4th Dynasty.