People migrated from Tamil nadu state to this area created five villages which are known as Kanthalloor , Keezhanthur , Karayur , Marayoor and Kottakudi . These villages were called as five lands. Marayoor have many Muniyaras or Dolmens sites belonging to the megalithic age . These dolmens have four stones placed on edges and covered by a fifth one called the cap stone. Some of these dolmens contain several burial chambers , dozens of such chambers are present on the banks of the river pambar . Most of the dolmens are created during the period of iron age . Large number of dolmens are in overground with about 70 – 90 cm height , some are having 140 – 170 cms.In some underground dolmens have with double length up to 350 cms. The dolmens with raised roof might have been used for habitation of people. 

ROCK PAINTINGS

Ezhuthu guha rock paintings are sited in the sandal wood reserve forest , at an elevation of 1000 meters above sea level . More or less 90 paintings can be seen here. In Kovilkadavu 10 painted motifs are located on the south western slope of the plateaue overlooking the pambar river. In Manala you can see the rock paintings of deer and man . It is situated in chinnar wildlife sanctuary near the Alampetty tribal settlement .