A method and apparatus for dimensionally characterizing a target structure. In an example of the apparatus, the apparatus has a pole having a bottom end and a top end, an indicator system adapted to apprise an operator of the position of a dimension determination system relative to the target structure, and a measurement system adapted to apprise the operator of a dimension of one or more features of the target structure. In another example, the method includes taking a pole having a bottom and top end with a height determination system, a height indicator system and a height measurement system, orienting the pole relative to the plant structure, raising the height determination system to the height of the target plant structure, and determining the height of the target plant structure.