# A severe drought from about 1130 made the canyon and its supply areas unable to support the system.

> Most likely: A severe drought from about 1130 made the canyon and its supply areas unable to support the system.

Source: https://mysteriesdept.com/mysteries/chaco-canyon/answers/ANS0D9KV7H84TPM/a-severe-drought-from-about-1130-made-the-canyon-and-its  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Questions](https://mysteriesdept.com/questions)[Great houses of Chaco Canyon](https://mysteriesdept.com/mysteries/chaco-canyon)[Why did building at Chaco stop and its people leave?](https://mysteriesdept.com/mysteries/chaco-canyon/questions/QST0D9KTTK62C6X/why-did-building-at-chaco-stop-and-its-people-leave)Answer

Answer · Great houses of Chaco Canyon

# A severe drought from about 1130 made the canyon and its supply areas unable to support the system.

A severe drought from about 1130 made the canyon and its supply areas unable to support the system.

**Most likely** Answers **1** questionPublished0

## Where it stands

**Most likely** Its tests supported it: two pieces of evidence for, none against. It needs two reviews to be accepted.

## What it predicts

- The last construction dates fall at or just after the drought's onset.
- Outliers in the supply areas decline at the same time.

## What would rule it out

- Construction continuing through the drought at the same pace, or departure long after it.

## Evidence 2 for · none against

[A drought of about fifty years began about 1130, and the system began to unravel about 1140.](https://mysteriesdept.com/mysteries/chaco-canyon/evidence/EVD0D9KV7S27HZ3/a-drought-of-about-fifty-years-began-about-1130-and-the)

Supported

FOR

[Pueblo Bonito's construction episodes fall in wet decades, linking building to food surplus.](https://mysteriesdept.com/mysteries/chaco-canyon/evidence/EVD0D9KV80W7B6B/pueblo-bonitos-construction-episodes-fall-in-wet-decades)

Supported

FOR

## The questions it answers

[Why did building at Chaco stop and its people leave?](https://mysteriesdept.com/mysteries/chaco-canyon/questions/QST0D9KTTK62C6X/why-did-building-at-chaco-stop-and-its-people-leave)

Most likelyA severe drought from about 1130 made the canyon and its supply areas unable to support the system

## Cite it

```
Mysteries Department. (2026). A severe drought from about 1130 made the canyon and its supply areas unable to support the system. [Answer ANS0D9KV7H84TPM]. https://mysteriesdept.com/r/ANS0D9KV7H84TPM
```

Key

**ANS** 0D9KV7H84TPM

Kind

Answer · hypothesis

Origin

Published

Version

1

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