The cache is not at the posted coordinates.
This is a physical bonus cache for the Adventure at Pactola Reservoir Adventure Lab. You will need to download the Adventure Lab app and complete this Adventure in order to get the final coordinates to the bonus cache.
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Not familiar with Adventure Labs?
Geocaching Adventure Lab is a new app and platform that allows you to create, play, and share location-based experiences and games. The Adventure Lab app guides players through the process of finding clues, solving puzzles, and completing Adventures, one location at a time. These are virtual finds and there is no physical cache to sign, except for the bonus cache.
If you're already a Geocaching member, these Adventure Lab Caches count towards your Geocaching.com statistics and total finds.
In contrast to other cache types, Adventure Lab Caches are virtual (without a container), can be indoors, and do not require a minimum distance to other geocaches. This allows Lab Cache creators to innovate and test new ideas to make geocaching even more fun.