AbstractsAnthropology

A long Douglas-fir tree-ring chronology was needed for use in a climatic interpretation of Mesa Verde. The archaeological portion of the chronology was derived from 21 archaeological specimens obtained from excavations on Wetherill Mesa and extended from A.D. 435 to 1276. The modern portion, extending to 1963, was derived from directional and non-directional cores from six very old living Douglas-fir trees. In addition, four directional cores from each of the six trees were used to compute tree-ring indices for the years 1860 to 1963, which have been used for an analysis of paleoclimate.