You're welcome for a cache that starts with Z if you need one for a challenge! I think this would just about qualify as a park and grab, too. This cache is hidden near the trailhead to Hickory Woods, an area that was purchased by Hickory Hills Landowners through tireless fundraising efforts by Judy Male. You will see the tribute to her right near this cache. These trails were private up until a couple of years ago (2018?). There are other great caches in these trails as well!
The best maps to use are Geocaching Premium's maps, as well as Alltrails.com. Here is a map of a loop in the area from Alltrails. I hope to create one covering all of these caches soon! Another you can refer to is Hickory Hills' map, but the new trail from Wildwood is not yet one it.