FOUNTAIN CITY, Wis. — A 57-year-old woman was found dead inside a trailer house in Fountain City. Sheriff Michael Osmond said there was no imminent threat to the public but that he was conducting “an active death investigation.” He called in the state Division of Criminal Investigation. An autopsy would be conducted, he said. The body was found during a welfare check at the trailer, at 26 Court Lane, an out of the way trailer park on a dead-end street on Fountain City’s South End.