Alan Levin, 84, was reported missing on Saturday and his vehicle was located by the Port Republic Bridge in Port Republic on Sunday afternoon.
Then, on Monday, a body was found on the bank of the Nacote Creek about a third of a mile from the bridge.
The body matches Levin's description, police said, but add that a positive identification has not yet been made.
The circumstances of Levin's disappearance remain under investigation by the Galloway Twp. Police Department and New Jersey State Police.