Original: Northwest Oklahoma is also known by its Oklahoma Department of Tourism designation , Red Carpet Country , which is named after the region 's red soil and alludes to the metaphor that the panhandle is a '' red carpet '' into Oklahoma .
Simplified: Northwestern Oklahoma is the geographical region of the state of Oklahoma which includes the Oklahoma Panhandle , stretching to an eastern extent along Interstate 35 , and its southern extent along the Canadian River to Noble County .