This map printed by the ODOT and reviewed by the OHS is not dated. I have this map and cannot find a date anywhere, front or back. The map shows the battle of Round Mtn to be just south of old Ft Arbuckle and the battle of Twin Mounds (1865) in Payne Co. My friend says there are mistakes on the map. Does anyone have an opinion of the accuracy of this map?

http://www.okladot.state.ok.us/hqdiv/p-r-div/maps/misc-maps/civil-warb.pdf