Historical Marker Series Volume 9. This book shows you all the HISTORICAL MARKERS in the state of OKLAHOMA. In this edition you will find a total of 72 historical markers. Each marker is described with its location, GPS coordinates, and the exact inscription. The markers are sort by the name of the location. With one click you are able to jump from the content to the markers of your choice, and back to the content to search for other markers.Because it is an E-Book and you always have your reading device with you, it is specialized for this kind of reader, who wants to have some Information on hand in a short way or get some entertainment while traveling.