
How to Measure for a Champion TreeSource: Missouri Department of Conservation (MDC)


Measuring CircumferenceCircumference is measured at 4.5 feet above the ground. If a growth or branch is located at this point, measure below it where the circumference is least. If the tree forks below 4.5 feet, measure the larger fork at 4.5 feet. To measure the circumference, locate a point at 4.5 feet above the ground on the trunk and place the zero end of the tape there. The tape is wrapped around the trunk tightly without sagging so that it exactly meets the zero end of the tape. The circumference is read in feet and inches. 
Measuring Crown SpreadCrown Spread can be measured by setting a stake directly under the outside edge of the crown farthest from the trunk (A) and another directly opposite it at the outer edge of the crown (B) on a line passing through the center of the tree. Next, set stakes marking the shortest diameter of the crown passing through the center of the tree (C and D). Measure both diameters to the nearest foot with a tape measure. Add the two measurements together and divide the sum by two to obtain the average crown spread. 


Measuring HeightHeight is the distance between the base and the topmost branch of the tree. A simple method of measuring tree height, which is quite accurate, is done in the following manner:

If you think you have a bigger tree, you can nominate it with the Anne Arundel County Forestry Board forests@earthlink.net. You will be sent a form to fill out with an estimate of the tree’s size. If it looks like a Champion, qualified personnel will be sent out to take an official measurement of the tree. Good Luck! 