There once was a cache placed
in the crotch of a twin cedar tree, but it went missing
twice. Since it could not be replaced close enough or
in a similar enough manner, it was let go. However, the
park is too good not to have a cache in it.
Look for a small bison tube hidden
in a woodsy corner of the park. It should prove to be a
challenge to find, so if you need a hint, a couple pictures have
been provided as spoilers. Be sure to re-hide it
well.

The original cache
location