UA Tree Ring Lab and Tucson Metro Chamber

Did you know that the Tree Ring Lab was the FIRST dendrochronology lab in the world, has the largest archive collection, and is the most diverse research facility in the US! In 1937, the scientific study of tree rings was formalized by the creation of the Laboratory of Tree-Ring Research at the U of A. Dendrochronology is the dating and study of annual rings in trees. To learn more go to .