There are no ages for Tantalite-(Mn) at Vanderberg Mine (MS 5391; Naylor Rock; Naylor-Vanderburg Mine; Sickler Group; Vandenburg Mine; Vanderburg Mine), Hiriart Mountain (Hariat Mtn; Harriot Mtn; Heriart Mtn; Heriot Mtn; Hiriat Hill), Pala, Pala District, San Diego Co., California, USA