Old cemeteries can be lost to time through both neglect and progress. Usually, no one knows about a lost cemetery until they inadvertently stumble across one. This occurrence is not as rare as one might expect. Clearing of forests or new construction can quite literally dig up the past. If you do uncover what you think is an old cemetery, you should contact state and local officials.New book explores Louisiana's sinking cemeteries
Links:
Division Of Archaeology, Cultural Resources, Cemeteries & Burials
Native American Graves Protection and Repatriation Act
The Advocate, Researcher maps hidden graveyards of slaves who once tilled Louisiana sugar cane fields
Archeology, Following the Trail of Ancient Louisianians
Francis Norton 2018