Láron Mardilo

The so-called Leaguer of Mardil was a line of fortifications built in Ithilien just beyond the Morgûl Vale to prevent the forces of Mordor to enter the main province. Added to these fortifications stretched a web of magical wards woven by the wizard Curunir—for the most part, with the aid of the few remaining Gondorian seers and the encouragement of Mardil Voronwë the Steward.