Great Trees of Oklahoma

Oklahoma Forestry Services, in cooperation with the Oklahoma Forestry Association, maintains records on the largest specimens of many of Oklahoma's tree species.  This list has been updated and published periodically since the early 1960's.  The registry is updated yearly and published every December. Currently there are close to 100 champion and co-champion trees contained in the list.


Champion Trees of Oklahoma - 2014 Registry 

Eligible Species List

How to Measure a Champion Tree

Online Nomination

Application Form - Nominating a Tree

Form for Use by Forester to Evaluate a Nominated Tree

Historic Oklahoma Champion Registries

1964 1972 1980 1981 1983
1984 1986 1988 1991 1998
1998/1999  2000 2010 2013/2014  


2014 Champion Photos