1. Estimate the amount of rise or fall to given
landmark compared to the base of your tree. If you are 15 feet up
and the landmark is approximately 15 feet lower in elevation than the
base of your tree, then use the 30' scale on the Archer Range (and of
course, conversely, if looking uphill).
2. When attempting to range a tree that is at a
different elevation than the tree your stand is in, simply aim the
Archer Range at a point on the intended target that is level with the
base of the tree your stand is in (as shown below). The distance
given will be an accurate reading of the horizontal distance to the base
of the target tree.
3. Another method is to range trees on the same elevation as the
base of your tree, then look at the trees that are uphill or downhill at
eye level to estimate the ones that are the same distance away as the
ones ranged. Shoot the bases of these estimated trees as being the
same distance as the known trees.