THE CACHE IS AT THE POSTED COORDINATES, BUT THERE IS A SPECIAL LOGGING REQUIREMENT.
CHALLENGE:
A call or summons to engage in a contest of skill, strength, or competition.
You may physically sign the log at any time. But, you MUST meet the requirements to log it as a 'find' online.
The cache IS located at the posted coordinates. To be able to claim a find on this cache, you will need to:
Show 10 CITO EVENTS that you have attended This state (and others) have some great opportunities to participate in clean ups or plant control.
You may use any of this type event for qualifying. It doesn't matter when or where you attended the event. But, I must be able to confirm it. Attached is a link to Project-GC if you would like to use it.
Don't forget to sign the log Please make sure that the lid is tight on the container and that the handle is up. 
Re-hide the cache in the way that you found it.