Bet you thought they were extinct. There still seems to be plenty on dino's hanging out in the local WMA's.
This is a hunting area - know your hunting seasons, take appropriate precautions, wear blaze orange when in season, and give guys/gals with guns the right of way.
You are looking for a cammo'ed pill fob containing only a waterproof log. Permanent markers work best here - ball point and gel pens also work. Pencils not so much. All caches have been averaged 100 times to within 10 feet. With the cover your results may vary so generous hints are being provided.