Why did the Anasazi leave Chaco Canyon? How did Archaeologist make these determinations?

The Anasazi left Chaco Canyon, probably due to environmental damage, droughts, poor infrastructure and possible pests,

Archaeologists make these determinations through artifacts and signs left by these people, as well as reports from their descendants.

Explanation:

The Anasazi had a good life in Chaco Canyon, where the environment and the presence of natural resources allowed the settlement of this people in that region, as well as the prosperity and establishment of a city. However, this prosperity did not last forever since these people left this region, dividing themselves into several different tribes.

Within these tribes, the Anasazi told stories about their successes in Chaco Canuon. These stories passed from generation to generation and helped historians to discover the reasons that led to the abandonment of Chaco Canyon, together with the study of artifacts and signs left by these people, such as rupestrese paintings and residences.

The most likely thing to have happened is that these people have become highly numerous. Making environmental exploitation increasingly larger and severely depleting the environment, in addition, the presence of droughts made this depletion even greater along with the rise of pests, leading to resource deprivation.

The increase in population meant that the infrastructure of cities was unable to accommodate and satisfy everyone, creating problems with basic sanitation, housing and other factors.

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