Designed to protect, it’s the 3.2 you should select
As it possesses a very precious gem.
Embrace ascension over concession
Clearly channel grass, leaf and stem.
To grasp a small arbor of your quest.
Hate the hobble to find our bauble
Come to the commencing west.
Explanation:
The signage around the ballfields talks about the restoration of the area to make the current park we enjoy. One of them speaks to the 3.2 acres up the hill from that location designed to protect the wetlands. So, hunters were to ascend from this sign and the concession building and look among the plantlife. The second stanza referred to the classic song Don’t Fence Me In by pulling in some lyrics. The “arbor” in the song is a cottonwood tree. A cottonwood tree was due west (as also mentioned in the clue) of the hiding spot.