Tree-Ring Dating Results, The Ridgeline Site Database, Crow Canyon Archaeological Center

TREE-RING DATES

Study Unit	Description	Inside Date (A.D.)	Outside Date (A.D.)	Tree Species	PD	FS	PL	Tree-Ring Laboratory No.	Comments
STR 101	earth-walled pit structure	348	418LB	juniper	21	32	8	CCC-3716	One piece.
STR 101	earth-walled pit structure	387+-	494+L	juniper	36	15	65	CCC-3707	One piece.
STR 101	earth-walled pit structure	347+-	510+L	juniper	54	28	106	CCC-3706	One piece.
STR 101	earth-walled pit structure	475	541+vv	ponderosa pine	37	33	73	CCC-3708	Two pieces.
STR 101	earth-walled pit structure	475+-p	561++vv	ponderosa pine	54	27	148	CCC-3705	Three pieces.
STR 101	earth-walled pit structure	572	610+LB	pinyon	37	41	68	CCC-3715	One piece.
STR 101	earth-walled pit structure	550p	623++vv	ponderosa pine	37	44	86	CCC-3718	Three pieces.
STR 101	earth-walled pit structure	627p	667LB	juniper	57	33	194	CCC-3719	One piece.
STR 101	earth-walled pit structure	605	686vv	ponderosa pine	21	17	17	CCC-3717	Two pieces.
STR 101	earth-walled pit structure	625	693vv	ponderosa pine	21	21	19	CCC-3714	One piece; same log as PL 17.
STR 101	earth-walled pit structure	686	722+LB	pinyon	37	69	165	CCC-3713	One piece.
STR 101	earth-walled pit structure	708p	759vv	pinyon	55	60	223	ccc-3710	Two pieces.
STR 101	earth-walled pit structure	688+-p	763LB	pinyon	55	57	172	CCC-3711	One piece.
STR 101	earth-walled pit structure	691+-	788+L	juniper	54	25	144	CCC-3709	One piece.
STR 103	earth-walled pit structure	488+-	580+vv	pinyon	23	21	21	CCC-3712	Two pieces.
PD = provenience designation; FS = field specimen; PL = point-location number.
Date symbol explanations (from the Laboratory of Tree-Ring Research, Tucson, Arizona): B Bark is present. r Less than a full section is present, but the outermost ring is continuous around the available circumference. v A subjective judgment that, although there is no direct evidence of the true outside on the sample, the date is within a very few years of being a cutting date. vv There is no way of estimating how far the last ring is from the true outside; many rings may be lost. + One or a few rings may be missing near the outside whose presence or absence cannot be determined, because the series does not extend far enough to provide adequate cross dating. ++ A ring count is necessary beyond a certain point in the series because cross dating ceases.