Twin Buttes (Hidatsa: Idarúhxa Arucúhgaru Maa’ú’sh or cuuk gaamaaʔuush;[2] Mandan: Tííru’pa Pshíí Wóónis) is an unincorporated community in Dunn County, North Dakota, United States. It is a community on the Fort Berthold Indian Reservation, which is home of the Mandan, Hidatsa, and Arikara Three Affiliated Tribes. Twin Buttes is 2 miles (3.2 km) south of Lake Sakakawea, and 12 miles (19 km) north-northeast of Halliday.