The traditional territory of the Guugu Yimithirr speakers extended from the Endeavour River outlet inland, ranged as far north as the mouth of the Starcke river, or, according to Norman Tindale, to the southern vicinity of Cape Flattery. Westwards it reached the source of the Jack River and south to Battle Camp, north-west of Cooktown. Tindale assigned them, in his estimations, an overall domain extent of some . Dialects of the same language were spoken north of Cape Bedford and the McIvor River, and inland as far as the source of the Jack River. Captain Cook left a few pigs on the land, and they bred quickly, to become a major local source of food.