update:7/14/24 As time goes by, I have that learned using trees, logs, and bark in the middle of a wooded area will change drastically over time. This was placed 11 years ago and even through GZ is still in place. Getting there isn't as easy. So, I'm modifying the last part after the bridge which should never change.
After you park start walking down the trail on the Left. The trail will be wide and slightly winding for the first 500 feet, then it will begin to narrow down a little more. Keep walking until you have to make a choice, straight at some large pines or left toward a bench, pick the later. Keep going through the remains of a long ago building, follow the path down a small hill, under a leaning tree and hop on a wooded foot bridge. Stay on the foot path and cross the wooden bridge. Now make a right turn and follow the creek 300 feet. Look across the creek and spy a large tree. There you will find what you seek. Please be sure that the container is completely and hidden and secure. This is a flood plain and after a heavy rain. Things sometimes get washed away. Some bushwacking required.