You stand at the center of your cruising plot and use the prism to count how many trees in a 360 degree circle around you are considered to be “in” or “out”…..You then multiply the number of trees that are counted as "in" times 10 to get a basal area. The tree in my previous pick would be counted as in. If the offset were just a little more to the right then it would be out and not counted. Someone correct me if I got that wrong....it's been a while.
You are right. But there is a little more to counting a boarder tree as "in or out". Experience and tract characteristics come into play.
