This is a bonus cache for the Locks to Bypass the Susquehanna Adventure Lab. You must complete the AL to obtain coordinates for this cache. Look in the journal entries for information.
Note that you may have poor cel service at some AL locations. Start the lab before arriving. If you enter geofences, you can see the question and later answer it. Posted has cel service.
Posted coordinates are a good place to park to find this small lock-and-lock container hidden along the Mason-Dixon Trail. That's also a good place to park for the Lock 15 location for the Adventure Lab.
NOTE: In early October 2024, there is a ground yellow jacket nest below ground zero. Approach GZ from a little further along the trail. We did not get stung or even bothered by them.