At the posted coordinates there is a sign that says Timber Rivers Park and Canoe Landing.
Below it is a smaller sign saying what is not allowed in the park.
Using the smaller sign convert these letter to their numerical value.
A=1st letter of the fifth word
B=10th letter of the fourth word + 1
C=3rd letter of the sixth word + 2
D=5th letter of the fourth word - 13
E=6th letter of the second word
F=7th letter in the fouth word
G=7th letter in the seventh word
H=5th letter in the third word - 1
I=1st letter in the seventh word + 1
J=12th letter in the second word + 4
N45 AB.CDE W93 FG.HIJ