Brockman, C. FrankVanderzicht, John R.2018-12-142018-12-141954EPM-068-06-005http://hdl.handle.net/20.500.11867/149065 sheets 12 x 9.5 inch, bi-folded and secured booklet style. Printed recto and verso. Copyright not renewed.A booklet that tells the history of the area and information about Ginkgo trees and where else petrified forests are found. Map on the back cover. Black and white photographs and illustrations throughout.Map