Doug Pederson shares with us this small and unusual collection of what he describes as 'Medicine Stones'.
He said recently, "The one in the middle popped out of a gravel crusher in 1972. Nothing comes out of gravel crushers.
"My sister found the one on the right a few years later. The one on the left came up in the family garden a couple years after that."
Doug added that such stones represent the most sacred objects in North America.