- Founded in 1937 by A.E. Douglass, who established the modern science of dendrochronology, the lab is a global leader in reconstructing past environmental, climatic, and social changes using the data stored in tree rings
- Scientists use ring width and cell density to analyze centuries of drought and climate variability
- Tree rings provide precise dating for wooden artifacts and prehistoric sites, helping to narrow down dates for events like volcanic eruptions
- The LTRR houses the world's largest collection of wood research specimens, which serve as an irreplaceable record of life on Earth over the past 100 years
- The lab is located in the Bryant Bannister Tree-Ring Building on the University of Arizona campus
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