The author presents an influence of man's activity on environment in Great Britain in early Mesolithic. Considerations concerning upland areas such as Dartmoor, North Yorkshire Moors and Southern Pennines include mainly the analysis of forest
community evolution near the top limit. In lowland areas such as Breckland and the Weald is seen terms of deliberate burning of the forest by late Mesolithic culture. The author gives classification of Mesolithic settlements, that suggests that small number