Contact: Mari N. Jensen
University of Arizona
Caption: Christopher Baisan of the University of Arizona's Laboratory of Tree-Ring Research examines a cross-section of wood he's just removed from a dead Douglas-fir (Pseudotsuga menziesii) in a canyon near Price, Utah. Analysis later showed that the tree had started life around A.D. 960, lived through the epic drought of the 1100s and died in about 1421.
Credit: David M. Meko, The University of Arizona
Usage Restrictions: Photo must be used only in connection with a story about the research described in this release. Please credit the photo to: David M. Meko, The University of Arizona.
Related news release: Colorado River streamflow history reveals megadrought before 1490