 The defensive perimeter seems to include a ditch of about 1 metre (3 feet 3 inches) of depth and width in base of the hill and a surveillance post in São Félix Hill.A necropolis, with seven tumuli, dating to end of the Neolithic, early chalcolithic is known around the hill.The necropolis was built during the beginning of the permanent habitation of the region, 4 to 6 thousand years ago, and thus much older than Cividade itself.