SABULA, Iowa (AP) -

The body of a man missing since 2011 when his snowmobile plunged into an icy river apparently has been recovered in the Mississippi River.

Jackson County Sheriff Russ Kettmann says authorities believe they have recovered the body of Shawn Berthel, who hasn't been seen since Jan. 22, 2011, when he and others were attempting to jump over open water in the Maquoketa River.

Berthel and a friend, Brett Stalker, plunged into the river. Stalker reached the shore but Berthel didn't.

Despite weeks of searching, Berthel's body wasn't found.

Kettmann says on Monday, the Corps of Engineers was dredging the Mississippi River just north of Sabula and found a body in a snowmobile suit. Kettmann says an autopsy will confirm the identity of the body, but it's clear it's Berthel.