Landmark trees played an important role in the settling of Kansas, guiding pioneers to their destinations. Such historic trees as the Custer Elm, the Post Office Oak and the Osage County Cottonwood were guideposts on the Kansas plains.

Reports of large or unusual trees are common in Kansas literature. H.A. (Steve) Stephens’ book, Trees, Shrubs and Woody Vines of Kansas, ends with a list of noteworthy examples. His original list of Champion Trees is now maintained by the Kansas Forest Service. This publication is a continuation of Stephens’ work.

The Kansas Champion Tree Program maintains a database of the largest trees of the various species in Kansas so they can be identified, preserved, and enjoyed by all. The Champion Trees listed in this searchable database include species that are native to Kansas, as well as some that have been introduced here.

Your help is needed to locate, document, and preserve outstanding trees in Kansas. If you know of a potential Champion Tree, please bring it to our attention using use our online nomination form. Your nomination will be officially measured and recorded, with the results being forwarded to you.

Nominations are judged on a point system established by the American Forests National Register of Big Trees. One point is awarded for each inch of circumference, one point per foot of height and one-fourth point per foot of crown spread.

Circumference is measured in inches, at a point on the trunk 4½ feet above ground. On a slope, the trunk is measured 4½ feet above the ground on the uphill side of the tree. If the tree has a fork below 4½ feet, the largest stem is measured at 4½ feet and this measurement is the circumference for the tree. If a tree forks at or slightly above 4½ feet, the circumference is measured below the fork where the circumference is the least.

Height is measured, or estimated, in feet, from the base of the trunk to the highest branch.

Crown spread is the distance, in feet, from the end of the branches on one side of the tree, through the trunk, to the ends of the branches on the opposite side.  One measurement is taken accordingly.  A second measurement is made at a right angle to the first measurement.  The results of the two measurement are then averaged.

The three measurements of height, circumference, and crown spread are added together to give a total point score. Circumference is the most important factor, followed by height and crown spread.

For additional information about the Kansas Champion Tree Program, please contact the Kansas Champion Tree Program Coordinator.