Table 15.22. Raw Materials of Chipped-Stone Tools
| Tool Type | LOCAL | |||||||
| Dakota Orthoquartzite | Morrison Chert | Morrison Orthoquartzite | Igneous | |||||
| N | % | N | % | N | % | N | % | |
| Projectile point | 47 | 43.9 | 5 | 4.7 | 1 | 0.9 | ||
| Biface | 60 | 65.9 | 5 | 5.5 | 3 | 3.3 | ||
| Drill | 9 | 33.3 | 11 | 40.7 | 1 | 3.7 | ||
| Modified flake | 53 | 14.1 | 218 | 58.1 | 70 | 18.7 | 1 | 0.3 |
| Modified core | 1 | 50.0 | 1 | 50.0 | ||||
| Other chipped-stone tool | 17 | 23.0 | 27 | 36.5 | 20 | 27.0 | 5 | 6.8 |
| TOTAL | 186 | 27.5 | 267 | 39.5 | 96 | 14.2 | 6 | 0.9 |
| Tool Type | NONLOCAL AND UNKNOWN | Total | |||||||||||
| Unknown Chert | Chalcedony | Petrified Wood | Unknown Quartzite | Washington Pass Chert | Obsidian | ||||||||
| N | % | N | % | N | % | N | % | N | % | N | % | N | |
| Projectile point | 37 | 34.6 | 11 | 10.3 | 3 | 2.8 | 1 | 0.9 | 2 | 1.9 | 107 | ||
| Biface | 6 | 6.6 | 11 | 12.1 | 2 | 2.2 | 1 | 1.1 | 3 | 3.3 | 91 | ||
| Drill | 4 | 14.8 | 2 | 7.4 | 27 | ||||||||
| Modified flake | 19 | 5.1 | 4 | 1.1 | 2 | 0.5 | 5 | 1.3 | 2 | 0.5 | 1 | 0.3 | 375 |
| Modified core | 2 | ||||||||||||
| Other chipped-stone tool | 5 | 6.8 | 74 | ||||||||||
| TOTAL | 71 | 10.5 | 28 | 4.1 | 7 | 1.0 | 6 | 0.9 | 6 | 0.9 | 3 | 0.4 | 676 |