Map of the Cherokee Oklahoma Tribal Statistical Area. Taken from a public domain Census Bureau map, and cropped and recolored somewhat by me.
<a href="//commons.wikimedia.org/wiki/User:QuartierLatin1968" title="User:QuartierLatin1968">QuartierLatin1968</a>
<a href="//commons.wikimedia.org/wiki/File:Americanindiansmapcensusbureau.gif" title="File:Americanindiansmapcensusbureau.gif">US Census Bureau map</a>