Oregon Revised Statutes Property Rights and Transactions § 97.600

Upon the death of the owner, unless the owner has disposed of the plot either by specific direction in the will of the owner or by a written declaration filed and recorded in the office of the cemetery authority, if no interment has been made in an interment plot which has been transferred by deed or certificate of ownership to an individual owner or if all remains previously interred are lawfully removed, the plot descends to the heirs at law of the owner, subject to the rights of interment of the decedent and the surviving spouse of the decedent.