Location: About mouth of Coleman River and the three widely separated mouths of the Mitchell River, extending along the coast between them and inland to about the limits of tidal waters.
Co-ordinates: 141°45'E x 15°20'S
Area: 500 sq. m. (1,300 sq. km.)
References: Parry-Okeden, 1897; Roth, 1910; Thomson, 1933; Sharp, 1939, 1952, 1958; Métraux, 1956; Australian Encyclopedia, 1958; Simmons, Graydon and Gajdusek, 1958; Tindale, 1963 MS.
Alternative Names: Yir Yoront, Yir-yiront, Kokomindjan (valid alternative with the accentuation as given above), KokoMindjin, Kokominjan, KokoMandjoen, Koko-manjoen, KokoMinjen, Koka-mungin.