Welcome to Pine Grove! We solved puzzles like this in the past and really enjoyed them, so we thought we would make our own. The above coordinates lead you to the Pine Grove Post Office. The geocache is not at these coordinates. You must enter the lobby of this post office which is open 8:30 to 4:30 Monday thru Friday and 6:30 to 3:30 on Saturdays. No spoilers (pictures)! We don't want to ruin the fun for others. Good Luck! The postmaster gave permission for this cache.
You will need to get information from the post office boxes for the final coordinates. In the lobby there are 10 sections from left to right that are divided by THICK black metal strips. There are columns in each section. You will count from left to right. There are rows, you will count down for each row. When you need to add digits to get sum, that means you take the numbers in the correct box and add them together. (Ex: box 350 = 3+5+0 = 8)
A = Section 1 (left to right), Column 3 (across), Row 1 (down) - 1 digit times 2nd digit
B = Section 4, Column 5, Row 3 - 1st digit plus 2nd digit
C = Section 9, Column 3, Row 3 - sum of digits
D = Section 6, Column 2, Row 3 - 1st digit times 3rd digit
E = Section 2, Column 5, Row 4 - 3rd digit minus 1st digit
F = Section 6, Column 5, Row 1 - sum of digits minus Section 8, Column 4, Row 1 2nd digit
G = Section 3, Column 2, Row 4 - 2nd digit plus 3rd digit
H = Section 7, Column 4, Row 3 - 2nd digit minus Section 10, Column 4, Row 4 3rd digit
N 40 3 A. B C D W 76 2 E. F G H