Laboratory of Tree-Ring Research

{{Short description|Dendrochronology laboratory in Arizona}}

{{More citations needed|date=August 2016}}

{{Infobox laboratory

|name = Laboratory of Tree-Ring Research

|established = {{Start date|1937}}

|research_field = Tree rings

|directors = {{ubl|David C Frank|Steve Leavitt}}

|address = 1215 E Lowell St.

|city = Tucson

|state = Arizona

|country = United States

|coor = {{Coord|32.2292032|N|110.9523167|W|display=inline,title}}

|zipcode = 85721-0045

|affiliations = University of Arizona

|website = {{URL|http://ltrr.arizona.edu/}}

}}

The Laboratory of Tree-Ring Research (LTRR) was established in 1937 by A.E. Douglass, founder of the modern science of dendrochronology.{{cite news|last=Kaib |first=Mark |title=Enlightenment in Burnt Forests - Laboratory of Tree-Ring Research |url=http://findarticles.com/p/articles/mi_m0GER/is_1999_Winter/ai_58458605/ |accessdate=June 24, 2011 |newspaper=Whole Earth |date=Winter 1999 |url-status=dead |archiveurl=https://web.archive.org/web/20100818175417/http://findarticles.com/p/articles/mi_m0GER/is_1999_Winter/ai_58458605/ |archivedate=August 18, 2010 }} The LTRR is a research unit in the College of Science at the University of Arizona in Tucson. Since its founding, visiting scholars and faculty at the lab have done notable work in the areas of climate change, fire history, ecology, archeology and hydrology.