TL;DR: Hike to a small cache at an interesting spot in the woods.
Bonus Cache: This is part of a series of caches, each of which contains a letter tile from the world's most popular word game. Take note of the letter associated with this cache if you would also like to solve the puzzle in the bonus cache, GC9YGNA Drawing a Blank.
This cache is at a junction of hiking/biking trails. It may have been used by other types of vehicles in the past as well. If you mountain bike in, you'll get here fast. Hiking will take perhaps 20 minutes to reach this spot.
Caution: Mosquitos can be bad at times. At GZ, use caution to avoid scrapes.
Container: The cache is a small, rectangular, heavily camoed food storage container.
Hide: It is visible without needing to move anything.
Access: There are several ways to access the trails in these woods. See the waypoints for suggested starting points for this particular cache; the DHMC Trailhead is closest and easiest. Maintained hiking trails will bring you right to the cache. The Trails map (premium feature) in the geocaching app shows most of the trails in this area. The hide is accessible in winter.
Congratulations to 51MarLin on the FTF!