LTRR

The LTRR

In 1937 A. E. Douglass, founder of the modern science of dendrochronology, established the Laboratory of Tree-Ring Research at the University of Arizona. The Tree-Ring Lab is recognized worldwide as a preeminent center for the advancement of tree-ring techniques and the broad application of dendrochronology in the social and environmental sciences.

Saturday, December 20

Tuesday, January 13

Wednesday, January 21

News

Bristlecone pine growing at treeline
A local newspaper highlights Matt Salzer's bristlecone pine work. Read more...
Swetnam close-up, forest canopy top below.
The American Association for the Advancement of Science has elected LTRR director Tom Swetnam as a Fellow Read more...
A new exhibit is coming soon to the Bryant Bannister Tree-Ring Building! Read more...
Articles teaching tree rings to kids appear in a newsletter. Read more...
The Lab wants YOU to become a docent! Read more...
Fire history work in the Tree-Ring Lab
An Australian documentary on mega-fires features the LTRR fire history and climate reconstruction. Read more...
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