A stone wall and rampart stretches for more than 3 km in the Dossone della Melia forest in south-central Calabria. Researchers have identified the wall and its accompanying ditches as part of a structure built by the Roman general Marcus Licinius Crassus in 71 BC to stop Spartacus and his mutinous troops.
The researchers were informed of the formation by local ecologists who knew about the wall’s existence but were unsure what it might be. Archaeologists used advanced radar and laser scanning methods and soil sample analysis to examine the site. They found that Parallel to the wall there once ran a deep ditch, now covered with moss and stretching for almost 1.5 km.
The defensive system of fossa and agger, i.e. a ditch and a mound, is characteristic of Roman architecture.. Historians have documented, for example, the 100-meter-wide, 24-meter-high agger built by Julius Caesar during the siege of Avericum in what is now France.
Source: geekweek.interia.pl