A continuation of escaperr's series.
I will let the caches breathe and speak for themselves.
At each cache location (#17 “Acorn” Series to #19 “Acorn” Series) you need to record ALL of the numbers found on the sign posts and then add each single number together to arrive at a total value “X”, which will then be used to find this puzzle cache. (ie - 123 = 1 + 2 + 3 = 6)
Use "X" in the following equation:
N 46 32.(X + 152) W 064 00.(297 - X)
[Check Sum: N = 25, W = 17]