The original dataset was modified by adding a field for calculating stand age. Calculations were based on dates listed in Date Origin field of original dataset. The dataset is styled based on the stand age.
The original dataset depicts the area of activities within or in close proximity to an administrative unit. The Activity Polygon layer is updated for new treatment units and will display the gross boundary of the unit as well as the retained sub-units. Units being managed by the US Forest Service are all that is reliably displayed on this layer.