Wednesday's effort was organized by Stacy's sister, Cassandra Cales. Police were not involved in the search near Weber Road and Boughton.
Nothing was found.
Stacy Peterson disappeared in October 2007. Authorities are calling her husband Drew Peterson a suspect.
Drew Peterson is being held on $20 million bond in the death of his third wife, Kathleen Savio. That case is set to go on trial in June.
