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Indiana Department of Natural Resources

Dept. of Natural Resources

Forestry > Forestry Publications & Presentations > Indiana Big Tree Register Indiana Big Tree Register

The DNR Division of Forestry publishes the Big Tree Register, a list of the largest known specimen of each native tree species in the state. The register is published every five years. The nominating period for the 2015 register closed in Oct. 2014.

The register requires three measurements: trunk circumference, in inches, at 4 1/2 feet above the ground; total height, in feet; and average crown spread, in feet. The total size of a tree is calculated using the formula: circumference + height + 1/4 average crown spread. The tree of each species with the highest total is Indiana's largest. Each tree nominated is verified for species and size before acceptance in the register. View detailed instructions.

For more information, contact district forester Janet Eger at (812) 247-2479 or e-mail jeger@dnr.IN.gov.

2015 Big Tree Register