Dan "Buck" Thomes Field
Location: Approximately 1-mile Southeast of Arlington, MN
At the posted coordinates you should look around. Specifically, you (were) looking for the sign below.... Alas, it is not on the pedestal any longer, so here is a picture of it.... 
With the above sign missing, what you are after now is some information off the bench directly behind the 'pedestal'.
Answer the following questions (from the marker on the BENCH):
- AAA = # of FIRST year minus (-) 1031
- ZZZ = # of SECOND year minus (-) 1984
Now for some quick and hopefully simple math.
N44 35 . A A A
W94 03 . Z Z Z
That is all there is to it. You are seaking a normal size container.
Check sum = 958
Check out Blackberry Smoke One Horse Town.