Inside the structure a shaft was dug 28 m (91 ft) into the bedrock where the Djoser's burial chamber was situated.
Great efforts were taken by the Egyptians in order to dig in the solid bedrock.
mnli hypothesis: Great efforts were taken by the Egyptians in order to dig in the solid bedrock. premise: Inside the structure a shaft was dug 28 m (91 ft) into the bedrock where the Djoser's burial chamber was situated.