The listed coordinates are for the the Post Office. The cache is NOT in or next to the building. The final to this puzzle is only a short drive from the Post Office.
The bank of boxes used in this puzzle are located to the right, around the corner as you enter the main door (box # 241 will be in the top left corner). The top left box is the starting point (241).
A simple puzzle once you learn how to apply this set of two numbers for the cache. Row (R): Column (C)…
Row: (R)
Starting at the upper left corner of the PO boxes. Counting from top to bottom, the top Row is 1 the next Row down is 2 and continuing on to the bottom.
Column: (C)
Counting from left to right, the left top box is Column 1 and the next box to the right is Column 2 and continuing on to the right.
You can see there are + (plus), - (minus) symbols used in the puzzle, so just calculate away…. find the correct cords for the final cache location.
To find the cache location, use the (Row:Column) format.
N34 degrees C10:R8 - C9:R7 . C27:R5 - C18:R10 + 292
W085 degrees C50:R5 - C45:R10 . C59:R1 - C20:R1 + 515
The P.O. Box lobby is open 24 hours.