As an added bonus, camping in many of these locations is completely free! Southwest Oklahoma:Ĭamping within the 5,000-acre Charon’s Garden Wilderness Area at the Wichita Mountains Wildlife Refuge is not for the faint of heart. Those looking for relaxation and solitude will find it with this list of backcountry camping opportunities in each region of Oklahoma. There’s no better way to reconnect with nature than with a peaceful excursion into the wilderness.