Chaco Document

Table 5.37. Ratios of debitage and tools, and formal and informal tools at sites in the Chacra Mesa survey area from the Anasazi, Navajo, Archaic, and Other/Unknown sites.
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	Culture
	Anasazi		Navajo		Archaic		Other/Unknown
Artifact Type	No.	Ratio	No.	Ratio	No.	Ratio	No.	Ratio

Debitage	6,558	10.5	706	5.9	248	10.3	4,152	11.8
Tool	623	10.5	120	5.9	24	10.3	352	11.8

Formala	134	0.27	33	0.38	13	1.18	90	0.34
Informalb	489	0.27	87	0.38	11	1.18	262	0.34

aIncludes projectile points, scrapers, bifaces, and drills. bIncludes utilized and retouched flakes.