Two scientists’ trek showed how people of Chaco Canyon may have hauled logs

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Two scientists’ trek showed how people of Chaco Canyon may have hauled logs
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This isn’t your traditional marathon.

The pair was about to embark on a 25-kilometer trek to replicate how the

The ruins of this great house in Chaco Culture National Historical Park in New Mexico are part of Pueblo Bonito, a complex considered the center of Chacoan society.. Load-pulling animals and wheels weren’t there at the time, and the timbers don’t appear to have been dragged. Scientists are puzzled by how the ancient people, ancestors of modern-day Diné and Pueblo peoples, moved the large timbers.. But Kram suspected this number couldn’t be correct.

He and Wilson proposed that tumplines could have been used to transport the timbers. These head straps have been found on every inhabited continent and are thought to have been used since at least around 2,000 years ago. They are still widely used to carry heavy loads, such as by professional porters in Nepal. A tumpline is placed on the crown of the head — to be in line with the cervical spine — with the attached cargo resting on the small of the back.

To see if tumpline timber transportation was humanly possible, Kram and Wilson trained for three months during the summer of 2020, gradually increasing their load weight and walk duration. Strangers who passed by couldn’t hide their confusion.

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