Someone found a gravestone near caves in the Minnesota city.
Police don't know where the headstone belongs.
They would like to return it to its proper place.
The headstone reads "Marie Olsen, 1879-1932" but nothing else.
Police spokesman Officer John Keating says they haven't been able to match the data to state birth and death records.
Keating tells the St. Paul Pioneer Press they hope someone will call with info about the mystery grave marker.