Depends where. This is treasure trove, (the discovery, or trover of treasure cache, deliberately hidden goods that can be classified as treasure, especially gol

Depends where. This is treasure trove, (the discovery, or trover of treasure cache, deliberately hidden goods that can be classified as treasure, especially gold/silver) and the laws around that are a bit of a mess in a lot of places (particularly in the US, where most states opted to receive common law and there are several contradictory precedents).