A triangular fortification with burnt wood layers

Renavo piliakalnis is a fortification located on a high point in a loop of the Varduva river. It forms a triangular area oriented east to west, measuring 10 metres long and 15 metres wide at its western end. At its western edge, a 2 metre high embankment, 18 metres wide, sits before a slope that descends into a 7 metre wide, 1 metre deep ditch.

Archaeological research conducted in 1906, 1966, and 1972 reveals that the embankment was filled at once with clay and reinforced with stones on the inner slope. Within this clay, researchers found a layer of wood and shrubs from trees cut in the summer and burned, reaching thicknesses of 15 to 40 centimetres. The site also contained animal bones and pieces of coarse ceramics.

Originally standing 10 metres high, the slopes now stand at 5.5 metres. The area has been stabilized against erosion, and the central clearing remains grassy. The hillfort is dated to the first millennium.

Sources: Wikipedia, OpenStreetMap, Wikidata, Wikimedia Commons