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.

Thursday, March 27, Thursday, April 24, Thursday, May 22, Thursday, June 26, Thursday, July 24, Thursday, August 28, Thursday, September 25, Thursday, October 23, Thursday, November 27, Thursday, December 25, Thursday, March 26, Thursday, April 23

Wednesday, April 30


Tree-Ring Lab director in Showtime documentary starting April 20. Read more...
Coring at the 2013 International Summer School (Russia)
International Summer School in Turkey, June 10 – 25 June 2013. Read more...
Fieldwork is an important component of some of the intensive summer courses.
Come to the University of Arizona for intensive summer tree-ring courses. Read more...
Fires and Humans in Resilient Ecosystems: forest fire history and outreach activities. Read more...
Monsoon failure key to long droughts in the Southwest. Read more...
Riggers preparing the slab for moving.
See a video of a popular museum exhibit being restored to public view Read more...