To those who want documented proof that this treasure exists, I have it. I did some research for BDD and found records of the USS Grampus. She was a Revenue Cutter ship built to supress the pirates in Florida. There is a record of the USS Grampus chasing a pirate schooner up the Manatee River. The pirate ship ran aground at Rocky Bluff (their campsite) and the pirates jumped overboard and escaped with the help of their buddies. The crew of the Grampus set the pirate ship on fire. There is more documented proof that this treasure exists but I am not posting everything.
The USS GRAMPUS,was built in 1821,and was part of THE WEST INDIES SQUADRON,which also included the USS HORNET,ENTERPRISE,PORPOISE,SHARK,and SPARK.Their mission was to suppress pirate activity in the area of the ANTILLES and PUERTO RICO.
The GRAMPUS had a compliment of two 12pounders and sixteen 24pounders.
Her first Capt,was Lt Francis Gregory,who sunk a pirate brig during his command.
GRAMPUS second Capt,John Sloat,had the greater victory,when he encountered pirate Roberto Cofresi (the Robin Hood of Puerto Rico),March 2,1824,as Cofresi sailed his EL MOSQUITO round Boca del Infierno (Puerto Rico's south coast).After a lenghty seabattle,Cofresi abbandoned his sinking ship,swam to shore,where he was captured with some of his men.Cofresi was executed,Mar 29,1825,at El Morro Castle,and piracy declined in the Caribbean and Gulf of Mexico for good.
The USS GRAMPUS was lost at sea with all hands, during on storm,Mar 15,1843,off the coast from Charleston,SC.
Where did your account of the GRAMPUS at ROCKY BLUFF originate?
US NAVAL records do not have this listed as a GRAMPUS enemy encounter.