Besides these barrows are also present menhirs, the highest known being in the Leon region where the largest, that of Kerloas, rises to 9.50 m. The largest ever erected is located in South Brittany in Locmariaquer: the Locmariaquer megaliths amounting to 18.5 m. Engravings can also be found there and their functions are multiple: Indicator of burials, astronomical and topographic features, or reflecting a water worship. The last menhirs were raised around 1800-1500 BC. They can be combined in single or multiple rows, or in semicircles or circles.