Part of the Lane Bottom rectangle
Assuming you are doing these in the order suggested you will now have wet feet, having crossed the stream with no bridge.
That came as a surprise to me too.
Anyway at the location given you will see a sign on the telegraph pole.
The number of fingers pointing is Q
The number of fingers folded is P
Finally, cut into the post are several letter and numbers, what number follows the letter F on the post? This is N for our purposes (hope that's not too confusing)
The final location for this cache is, you don't need to cross the stream again.
N53 48.(P+2) (P-1) (P x 2 + 1) W002 10.(Q+5) ( Q) (5xQ)
Happy hunting