Christopher Pike: I have confirmed with the Huron office of the US Fish & Wildlife service that WPA's fall under the same rules as National Wildlife Refugees, and as such geocaches are not allowed by Federal Law.
Because of that, I will have to archive this listing, and ask that the cache owner retrieve the cache container at his earliest opportunity.
Thanks, if you have any questions please contact me directly.
Christopher Pike
volunteer reviewer
Dakota.Reviewer@gmail.com