There is no container at the posted coords. What you find there is a big wood sign with the name of the park.
Use this sign to answer the questions that will give you the final hiding place.
The final is at N43 15.LMN W085 48.QRS
L. = The number of letters in the first word (And a very good word it is, don't you think?)
M = The number of letters in the second word
N = The number of letters in the first word PLUS the number of letters in the third word
Q = The number of Q's in the name PLUS 6
R = The number of Q's in the name
S = Total number of letters in the three words MINUS 1 DIVIDED by 2
Check sum for LMN = 20, for QRS = 13
Good luck!