Laboratory of Tree-Ring Research
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Laboratory of Tree-Ring Research History

Our Heritage

In 1937, the scientific study of tree-rings in America was formalized by the creation of the Laboratory of Tree-Ring Research (LTRR) here at the University of Arizona in Tucson. By that time, founder Andrew Ellicott Douglass had been working with wood for over 30 years, and so the tradition of dendrochronology here in Tucson is older than the Lab itself. The LTRR has long since given up the distinction of being the nation's only dendrochronology lab, but we have helped to found many dendrochronology labs around the world. Our unique heritage is still a source of pride, and it encourages us today to remain dedicated to our ideals: excellence in research, excellence in teaching, and excellence in outreach.

A. E. Douglass, founder of dendrochronology and the LTRR

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Laboratory of Tree-Ring Research
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© Arizona Board of Regents
The University of Arizona
Main Office: 105 West Stadium
Tucson, AZ 85721 USA
phone 520-621-1608; fax 520-621-8229
updated: 25 January, 2005