# NPS research of the 1970s and 1980s sharply reduced earlier great-house population figures.

> NPS research of the 1970s and 1980s sharply reduced earlier great-house population figures.

Source: https://mysteriesdept.com/mysteries/chaco-canyon/evidence/EVD0D9KTZ7M7409/nps-research-of-the-1970s-and-1980s-sharply-reduced-earlier  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Great houses of Chaco Canyon](https://mysteriesdept.com/mysteries/chaco-canyon)Evidence

Evidence · Great houses of Chaco Canyon

# NPS research of the 1970s and 1980s sharply reduced earlier great-house population figures.

NPS research of the 1970s and 1980s sharply reduced earlier great-house population figures.

Supported0

## What it bears on 1 answer

[Fewer than about 1,000 lived in the canyon year-round; the rest of the capacity was for visitors or storage.](https://mysteriesdept.com/mysteries/chaco-canyon/answers/ANS0D9KTYR06TY3/fewer-than-about-1-000-lived-in-the-canyon-year-round-the)

Most likely

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## Cite it

```
Mysteries Department. (2026). NPS research of the 1970s and 1980s sharply reduced earlier great-house population figures. [Evidence EVD0D9KTZ7M7409]. https://mysteriesdept.com/r/EVD0D9KTZ7M7409
```

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**EVD** 0D9KTZ7M7409

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