This is my first letterbox hybrid, a squirrelly jaunt through the park. It is similar to a cache except it uses clues to reveal the location of the letterbox. The listed coordinates take you to the starting location for the search, you then have to follow the clues to the final cache location. It can be done as a letterbox or a cache depending on whether or not you have a stamp. Bring your own ink pad, if you'd like to receive a squirrely stamp.
There are multiple places to park nearby Garaman Park. I've listed the closest to the start. This letterbox is along the awesome Pathways system in Jackson as well, so quite accessible by bike, etc. From the starting location you will be walking or rolling to the final location of the cache. Be aware of lots of others using the Pathway, especially the e-bikes which can fly through here.
The posted coordinates will bring you a bridge. Make like a squirrel and scamper over this bridge (be wary of trolls) and continue to the first intersection. While there are lots of trees to distract you, you'll want to head to the west or right, looking for the "Four Hills of Life" mural information.
"Four Hills of Life" is a mural reflects the Northern Arapaho culture with seasonal and life ways interdependent to the buffalo. The mural and that on the opposite side of the tunnel, representing Jackson's sister city of Tlaxcala, Mexico, are worth looking at, but a squirrel cares not about murals.
Instead, you'll need to reverse course and jump back 6 green beams where you'll find your cache of nuts or perhaps just a letterbox prize.
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Prize for FTF!