The information shown in the red callout box on the bottom
right indicates how to utilize the U.S. National Grid in a postal
address. The first alphanumeric group — 19T
— is the Grid Zone Designation (GZD). Next,
CJ designates the 100-kilometer square within 19T. Finally, the last two
groups of four digits each shows with a 10-meter precision
the exact location of the point.
Thus, let us start at the origin of
the 19T CJ square, which is its westernmost and southernmost point. With
respect to that point of origin, the entrance to Bailey Hall is 83.25 km
to the east, and 37.43 km to the north.