This cache is a challenge cache:
It is at the posted coordinates, even though it is an "unknown" cache type.
You are not allowed to log a "find" without proof that you qualify by completing the caching related "challenge" below, but you can make a write note.
Challenge:
To log this cache, you must have found and logged 1.800 or more Mystery Caches.
Attach a screenshot of your GC-statistic to your log or send me the screenshot by email so that I can check if you are allowed to log.
Logs that don't fulfil this condition or contain a fake screenshot will be deleted without any comment.
As the owner of this Challengecache I have to fulfil the cache condition myself.
https://project-gc.com/Challenges/GCAAH17/78916