This one could take a bit of effort, but your challenge -- if you choose to accept it -- is to find at least 1,000 (1K) caches in a calendar year [start counting from Jan 1st of a given year]. You can submit proof of achieving this accomplishment via your statistics, etc. No need to create a 1,000 cache bookmark, unless you really want to!
There could be another challenge in the works ... 1K finds in a rolling 12-month window (not necessarily a calendar year!)
This isn't an out of the ordinary container, or hide, but the fun should be in finding the first 1,000 caches to qualify to log this one. The camo should be a little out of the ordinary though.
I estimate you'll have a 10% chance of finding GZ on the first try!
There is a small prize enclosed for the FTF -- and another one for STF too!
The difficulty rating reflects finding the 1,000 caches ... actual difficulty of the container is about a 2. The terrain rating is reflective of the actual hide.
Oh, and you must have found your 1,000 caches in the year 2000 or later.