Entity MND-S1 (entity_id = 423): Date marked as other is constrained by the construction date of the boardwalk on which the stalagmite grew on. Original chronology constructed by counting trace elements cycles. Each year's depth anchored using Ba values. Isotope anchored to an annually resolved laminae chronology (see Treble et al, 2003). Author suggested to increase the uncertainties to +/- 2.5 years.