This map shows the incorporated areas and unincorporated areas in Graham County, Arizona. 

Peridot is highlighted in red, located within the San Carlos Apache Indian Reservation.
The western section of Peridot is within Gila County.
Incorporated cities are shown in gray and unincorporated communities or CDPs are shown in white.
Data for the borders and locations are based on maps from the US Census Bureau TIGER Map Server.
I created this map in Inkscape.
My own work, based on public domain information
This W3C-invalid vector image was created with Inkscape by Ixnayonthetimmay-default