Pueblo people lugged logs for leagues
To construct huge buildings in New Mexico, logs were hand-carried 75 km
But the source of the logs has been something of a mystery. Now Chris Guiterman, a PhD student in the Laboratory for Tree Ring Research at the University of Arizona, and his colleagues, have traced the logs in the Chaco Canyon buildings to two forests on mountain ranges more than 75 kilometres away.
Since the Pueblo people had no beasts of burden or wheeled machines, that means these builders carried, by hand and foot, more than a quarter of a million logs from the mountains to the canyon.