I recently started a new job, driving. Just what I wanted, too! Getting paid to geocache!!!!! Yes, I figured it out. During my first week, I drove by so many spots, many cemeteries, that could hold a new geocache or two, so I started carrying containers. This is the part in the series of "Back to Work I GO". I failed at retirement. This job sure has a lot less stress than my last one.
You are doing a modified Arnold cypher. Line, word, letter. Then convert the letter to a number. O=0 At posted coordinates use the Green signs with the word "East" on it.
N 43° 58.ABC′ W 85° 30.DEF′
A- 122
B- 212
C- 326
D- 115
E- 111
F- 312
Check sum- 24