At the posted coords is sign about 15 feet up a tree. Once you find said sign, you can find the cache. Using A=1, B=2, C=3 etc etc
I= 9th letter on the sign
N= 4th letter on sign minus 1
S=13th letter on sign
A=1st letter on sign
N=ZERO
E=number of letters in the 3rd word
N43 48. INS
W71. 40.ANE