Information below was provided by FAA spokesman Allen Kenitzer:
There was an midair collision Monday near Valley, Idaho. The aircraft, an American Champion and a Cessna, collided this morning under unknown circumstances. At least one aircraft went down 1/2 mile SE of the Landmark USFS Airport.
According to local authorities, there was one person onboard. Each aircraft.
Both the FAA and the NTSB are investigating, but the NTSB is the lead agency.