Marlena Jones and Rose Johnson prepare mutton stew for a Cameron church function. Johnson says she buys her mutton from the store or from Utah. Nona Johnson wants to know where sheep are safe to eat. Mining companies abandoned 500 mines in the mid 80s and the tribe and the federal government are slow to clean up the contamination. Roger Semallie has been herding sheep in Cameron for decades. He recently moved farther away from an abandoned mine. Andee Lister and a group of graduate students at NAU are trying to find out if mutton on the reservation poses a health risk to the community.