Fourche Maline (pronounced foosh-ma-lean) (Bad Fork, French) is a 70.0-mile-long (112.7 km)[1] tributary of the Poteau River in Oklahoma. The headwaters of Fourche Maline are in the Sans Bois Mountains in Latimer County. It flows southwestward through Robbers Cave State Park, then southeastward past Wilburton before turning eastward until it reaches the Poteau River in Le Flore County. It is impounded by Lake Wayne Wallace and Lake Wister.
Human habitation in the Fourche Maline valley dates from at least 3,500 years ago. The Fourche Maline culture (300 BCE-800 CE), a Woodland period Native American group, is named for the creek. The Fourche Maline culture evolved into the Caddoan Mississippian culture by 1000 CE.