BATTLE SITE MARKED—Norris B. Coambs, Chesterton, president of Duneland Historical society, Monday afternoon unveiled marker at Dunes State Park commemorating Revolutionary War battle of 1780. (V-M Staff Photo)Vic'j1780 Battle PlaqueIs Unveiled At ParkBy THE STROLLERCHESTERTON—A Revolutionary War battle fought in 1780 at Le Petit Fort, famed log fortification built about 1717 near Lake Michigan, was Monday afternoon marked by a historical plaque.Mere than 100 people were present at the unveiling ceremonies at Dunes State park, conducted by the state society of the Daughtersof the American Revolution,aCEEECcccIfI! I!lAmericans BeatenInscription on the plaque reads: At Le Petit Fort, near this site.