Valkeakoski: The Rapola Ridge
The Rapola ridge is one of the most important prehistoric hill forts in Finland, which were in use at least during the period of 800-1250 AD. On the upper slopes of the ridge, a large number of dwelling places, cooking pits, and other signs of habitation have been found. Closely adjoined to the hill fort on the South Western slope is a large area with numerous finds. There are, among other, a burial ground with over hundred barrows (tumuli), and an ancient field from the Iron Age, found in excavations in 1988.