Riding herd on petrified trees Author N.Brandt Article Date August 1971 Article Abstract Greer ranch sells petrified wood Journal Title Outdoor Ariz
A lava covered tertiary forest in Southern Arizona Author P.E.Damon and H.W.Miller Jr. Article Date February 1963 Journal Title J Ariz Acad Sci
A forest of 180 million-year-old trees Author C.W.Barnes Article Date June 1975 Article Abstract Issue includes many colored photos of the wood Journal Title Ariz Hwys