RGS: Well, I guess someone really wanted this safe, or what they thought was in it. It was chained and bolted to a 4-5" diameter tree. The chain was hardened and the double-nutted bolts had the threads ruined so they couldn't be removed with normal tools. It looks like they pulled over the tree, removed the branches and slid it up and over the top.
So now theres a new place in the park for a cache.
RGS