Unknown2018-12-142018-12-141953-05-16EPM-068-06-002http://hdl.handle.net/20.500.11867/14904Single 11.5 x 9 inch sheet, bi-folded. Printed recto and verso.Includes information about the history of the forest, as well as a program, with dedication by Governor Arthur B. Langlie.Program for the dedication of the addition to the Ginkgo Petrified Forest Museum.