# Palca 1989: Sun Dagger Misses Its Mark

> Joseph Palca, 1989. 2 records on Mysteries Department cite it. The contemporary report of the 1989 slab shift.

Source: https://mysteriesdept.com/sources/SRC0D9KTBYE1S3J/sun-dagger-misses-its-mark  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Sources](https://mysteriesdept.com/sources)[Great houses of Chaco Canyon](https://mysteriesdept.com/mysteries/chaco-canyon)Palca 1989

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# Sun Dagger Misses Its Mark

Joseph Palca, 1989. _Science 244(4912): 1538_.

News report that the Sun Dagger no longer marks the solstice as it did, because one of its slabs has shifted, the erosion blamed on visitors and investigators.

**Great houses of Chaco Canyon** Articledoi: **[10.1126/science.244.4912.1538-b](https://doi.org/10.1126/science.244.4912.1538-b)** Checked against the original0

## What it's used for here

The contemporary report of the 1989 slab shift.

## Cited by on this site 2 records

[The middle Sun Dagger slab is found to have pivoted, and the solar markings no longer form as recorded](https://mysteriesdept.com/mysteries/chaco-canyon/events/EVT0D9KTPY01HH5/the-middle-sun-dagger-slab-is-found-to-have-pivoted-and-the)

EVT

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

The mystery article

MYS

## Cite it

```
Palca, J. (1989). Sun Dagger Misses Its Mark. Science 244(4912): 1538. https://doi.org/10.1126/science.244.4912.1538-b
```

[Find it at doi.org](https://doi.org/10.1126/science.244.4912.1538-b)

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**SRC** 0D9KTBYE1S3J

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Journal article

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The record

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