LBA tumuli are the earliest burials of this type in the Rhodope Mountains. They are usually combined in groups, with from 2 to 20 contemporary burial mounds in a single
cemetery. It seems also noteworthy that there is a considerable degree of topographic continuity with later periods like the IA and Roman, resulting in the accumulation of
tumuli (sometimes up to 200 mounds) in large cemeteries. Furthermore, cremation, which is typical of the LBA, is almost entirely replaced by inhumation at the beginning
of the EIA. In Upper Thrace, on the other hand, the opposite trend is observable: LBA inhumation dies out with the end of the period and is replaced by cremation in ‘knobbed’ urns.