The pyramid complex of Userkaf was built c. 2490 BC for the king Userkaf, founder of the 5th Dynasty of Egypt. It is located in the pyramid field at Saqqara, on the north-east of the step pyramid of Djoser. Constructed in dressed stone with a core of rubble, the pyramid is now ruined and resembles a conical hill in the sands of Saqqara. For this reason, it is known locally as El-Haram el-Maharbish, the "Heap of Stone", and was recognized as a royal pyramid by western archaeologists in the 19th century.