Only do this cache if you're confident climbing trees. Use a ladder or slings if necessary. Only do this cache when it's dry.
This is a reverse wherigo. You can start at the listing coords.
Codes for the reverse wherigo:
703151
145160
275178
The cartridge can be downloaded here:
http://www.wherigo.com/cartridge/details.aspx?CGUID=dcdcd2ff-c171-4487-93bc-678f6d03ac4f