It is night and you have been wandering in the hills denoted by the big circle. You are on a
ridge but not sure which one as denoted by the two small circles. You shoot a bearing to the
highest silhouette to the west, which you correlated to the highest hill on your map, you get
255°, and draw that line in blue. You see a car’s headlights make a turn onto Lee Canyon
Rd. You shoot a bearing to the intersection, you get 75°, and you draw that line in red.
Whoa! 255° and 75° are the same line. They are reciprocal headings,180° different, however
you are on the highest ground there is between yourself and the intersection at the highway
and there are no ridges between yourself and the peak to the southwest. Your position is on
the highest ridge that both lines cross.

The principal of triangulation is to shoot 2 or more points; where those points intersect is
where you are. In this case the two lines coincided, but a third line was the ridge you were on.
Thus, you had an intersection after all.  

- NOTICE: You did not once need to read a number off the compass. I
called the bearings out in the above exercise for clarity. Pointing at each target you turned
the bezel ring until the needle was “boxed”….and on the map you placed the compass with
the base plate next to the target and rotated the entire compass until the index lines were
parallel with the grid lines and then drew a pencil line.