Another New Road Sign

On my return trip from Elk City last week I found this new road sign. I saw the same sign on OK highway 152, 44 and 54.
Great Plains Trails of Oklahoma

Great Plains Trails of Oklahoma

Update 8/14: Previous coverage of the Great Plains Trail:
Great Plains Trail of Oklahoma (6/24/2006), Great Plains Trail of Oklahoma (10/2/2005) - K.
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