We give information on the Early Holocene's fossil materials of the archaeological complexes of Northern Angara region, obtained as a result of fire-rescue operations at the facilities of Ust-Yodarma II, Ust-Keul I and Ostrov Listvenichny. We have studied more than three thousand fragments of mammals’ bones. Faunal composition of the collection suggests the immutability of faunal assemblage during the transition from early Holocene to the Atlantic optimum. According paleofaunal materials Early Holocene fauna of Northern Angara region can be quite comparable to the fauna of South Angara region. With the dominance of species Holocene complex of taiga and river valleys the fauna includes in its membership such relict species as Bison priscus and Equus ferus. Its habitats were ensured by the preservation of the open terrain area, large enough for the existence of herd ungulates. Mammals of Kata-Yodarma area of Angara valley were the basis of management of the ancient population of the territory. Breeding mammals probably had specialized seasonal trends. A permanent breeding activity of the population was a dog.