The Celebration CARW2021 Series was born during Mar 2021 and includes cache titles of "Celebrating "Blank" - CARW2021" (where "blank" = media types starting with letters A-J). That set of 10 caches has clues in each one to gather up to solve for the bonus Celebrating Media (Bonus). While no longer CARW2021, and while not continuing a clue trail, here is another cache to fill in the remaining letters of the alphabet - this one, brought to you by the letter N in all of it's REDUX glory.
While it is indeed a NIST (Nano In Spruce Tree), there is a hint at GZ.
Have Fun!