RedactedNarrative: On  07/21/2019 at  approximately  6:15  PM  subject observed a boat with no one in it.  The boat was floating down the Mississippi River from The Wyalusing Slough area into the main channel at mile 625 in front of the town of Clayton.   Subject went to the boat landing in Clayton and met up with subject2. The two men went out in Subject2's boat and retrieved the floating boat. 
  
  The boat was a 2003 20 foot Crestliner fishing boat. No one was on board; the trolling motor was down and turned on, a fish pole laid in the boat with the line out and a prosthetic leg laid on the starboard side gunnel of the boat. The two men tied the boat up to the dock just south of Bill's Landing. Fearing someone had fallen overboard they went looking for the owner of the boat. They went North up Wyalusing Slough which was the proximity of where the boat had come from. Unable to find anyone they phoned 911 into the Clayton County Sheriffs Office (CCSO). The time was 6:40 PM. Clayton County Sheriff Dispatchers started an investigation and had to run the boat registration IA 9520 AU through Cedar Falls State Radio Dispatch because the Iowa DNR does not allow the capabilities for law enforcement to run boat registrations. Once they got the registration information back from state radio it showed that the 20 foot Crestliner fishing boat.
  
  Dispatch then sent a teletype to Jones County Sheriffs Department  to try and make contact  with someone at that residence.
  
  At 7:05 PM Clayton County Sheriff's Office Sent deputies to Clayton and dispatched Fire rescue boats from the towns of Guttenberg, Garnavillo, McGregor and the Clayton County Sheriff's Patrol Boat to conduct a search and rescue in that vicinity. Conservation Officer (CO) hearing the traffic on his fire pager phoned Clayton County Sheriff's Office.  In speaking with the dispatcher she gave him the information that was given to her. CO then ran the boat registration and knowing from experience went to the Beacon website and found that Operator also owned a home elsewhere. CO gave this new information to the CCSO dispatcher and she was going to dispatch  a deputy to that location.
  
  At approximately 7:10 PM the Guttenberg Fire Department Rescue Boat was launched at Guttenberg and was searching the Mississippi River from Guttenberg North to Clayton, where they were to meet with the Garnavillo Fire department Command post. McGregor launched their fire rescue boat and were searching the Mississippi River from McGregor south to Clayton, where they were to meet with the Garnavillo Fire department Command post. Garnavillo Fire Department launched their rescue boat at Clayton and went north from Clayton up through the Sny Magill Bottoms to search that  area and meet up with the    McGregor rescue boat.
  
  At 7:35 PM a Garnavillo Fire Department boat coming south in Wyalusing Slough a mile north of Clayton, when one of the fireman seen a hand clinging to a half-submerged log. They found Operator clinging to a log in the water. Operator was not wearing a life jacket. He was cold and exhausted. Operator was near the west bank in Wyalusing Slough near the entrance to Lower Davis Lake. Operator was transported by fire boat to the Clayton boat ramp where he was treated by Garnavillo EMS and Later transported to the Guttenberg Hospital by Guttenberg EMS a paramedic unit.
   
  Operator was admitted to the Guttenberg Hospital for observation. The Incident is being investigated by the Iowa DNR.
  
  Operator had been fishing alone North of Clayton, at approximately 5:00 PM he got up from his seat in the bow of his boat and started towards the rear of the boat when he tripped on something and fell overboard losing his prosthetic leg. Operator had some difficulty in swimming to shore, he was able to grab ahold of a semi submerged  log where he was found two and half hours later.
  