Its area was defined as: "Commencing at the Mouth of Worrigall Creek on the Ninety Mile Beach Bounded on the North by a Line West Seventeen Miles to the Eastern Branch of the River Tarra; thence on the South-west by a Line in a South-westerly Direction to the Mouth of the Little River in Corner Inlet; and on the South and South-east by the Sea coast (including Snake Island) to the commencing Point".[2]