Treasure hunters who believe they found a huge cache of fabled Civil War-era gold in Pennsylvania are now on the prowl for something as elusive as the buried booty itself: government records of the FBI's excavation.

Finders Keepers filed a federal lawsuit against the Justice Department over its failure to produce documents on the FBI's search for the legendary gold, which took place nearly four years ago at a remote woodland site in northwestern Pennsylvania.

The FBI has since dragged its feet on the treasure hunters' Freedom of Information Act request for records, their lawyer said Wednesday....