|Study Unit||Description||Inside Date (A.D.)||Outside Date (A.D.)||Tree Species||PD||FS||PL||Tree-Ring Laboratory No.||Comments|
|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.
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