This category is for articles about objects and hoards of objects that have been legally determined to be treasure trove.
Treasure that has been found at sea is not dealt with by the law of treasure trove, but by the law of salvage which is a branch of admiralty law. Articles relating to this topic should therefore be placed in "Category:Treasure from shipwrecks".
Articles relating to treasure generally, including reputed and fictional hoards of treasure, should be placed in "Category:Treasure".