"Artifacts," by Scott G. Ortman
| Reduction Stage | Local | Semilocal | Nonlocal | Unknown | Total | ||||||
| Dakota Quartzite | Morrison Chert/Siltstone | Agate/Chalcedony | Brushy Basin Chert | Burro Canyon Chert | Petrified Wood | Obsidian | Red Jasper | Nonlocal Chert/Siltstone | Unknown Chert/Siltstone | ||
| Stage 1 | 2 | 2 | |||||||||
| Stage 2 | 1 | 1 | 2 | ||||||||
| Stage 3 | 1 | 1 | |||||||||
| Indeterminate | 3 | 2 | 2 | 1 | 1 | 9 | |||||
| Not applicable | 1 | 1 | 2 | ||||||||
| Finished | 20 | 4 | 10 | 4 | 4 | 1 | 2 | 1 | 11 | 57 | |
| TOTAL | 26 | 6 | 14 | 1 | 4 | 4 | 2 | 2 | 1 | 13 | 73 |
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