Roman Watchtower 4/7 (Rosbach)

The Upper Germanic-Rhaetian Limes, with a length of 550 km from Eining near Regensburg to Rheinbrohl on the Rhine, is the largest archaeological monument in Germany and has been recognized by UNESCO as a World Heritage Site. Limes (Latin: border path/wall) refers to the border fortifications of the Roman Empire, which were erected towards the end of the 1st century AD.

This border was monitored by more than 900 towers, which were built in timber construction during the initial phase, starting around 80 AD. Stone towers followed, which were plastered from 150 AD onwards. Excavations have shown that the white plaster often had incised joints, which were painted in terracotta. This created the impression of beautiful ashlar masonry.

Tower site of a single stone tower mentioned by Rossell and Cohausen and excavated by Kofler in 1893. The tower had a square footprint with a side length of 5.40 m, and the thickness of the foundation walls was 93 cm. The outer walls were covered with white mortar plaster, on which red false joints were painted. The tower was approximately 25 m away from the Limes.