Traditional metal caskets are not allowed. Instead, burials are conducted using low-impact biodegradable containers made from simple materials like unvarnished wood, cardboard, or even a simple shroud. Except in the case of cremation, bodies entering the cemetery may not be embalmed. Grave markers, if desired, are engraved using local river stones and placed over the burial site. Plastic flowers and other ornaments are prohibited in the cemetery.