The coordinates listed above are not those for the cache (rather a nice spot to park and ponder the easy route up the flank of the Topping through the woods). You will not need to visit the location to help in finding the cache.
In order to sign the log you will need to bring your own writing implement (but then you always do!) and perhaps some tweezers.
The coordinates for the cache are encoded below.
127 144 227 257 289 309 283
156 140 108 258 229 168 239 269

You can validate your puzzle solution with certitude.
n. Ancvre
o. Orghyn