Archeologist Mary Metcalf estimates the project required more than 500,000 person-hours, and 26,000 wood beams to support Chetro Ketl's walls and ceilings.
She notes that 26,000 wood beams were used to help support Chetro Ketl's walls and ceilings. Archeologist Mary Metcalf estimates the project required more than 500,000 person-hours.
Archeologist Mary Metcalf estimates the project required more than 500,000 person-hours. She notes that 26,000 wood beams were used to help support Chetro Ketl's walls and ceilings.
Archeologist Mary Metcalf estimates the project required more than 500,000 person-hours. She notes that 26,000 wood beams were used to help support Chetro Ketl's walls and ceilings.