of these monuments cannot have been roofed with capstones (the uprights are too small to have supported capstones large enough to span the chambers), and corbelled vaulting would be impractical given the character of the available stone. It is conceivable that these chambers had wooden roofs, but recent excavations at La Hougue des Géonnais provided no evidence for this. Assuming that the chambers were open, the cairns of these monuments cannot have covered the chambers whilst they were in use, and must rather have formed a sort of platform around an open ‘arena’.” La Table des Marthes A large flat granite slab at the western end of The Railway Walk where it meets La Rue de la Corbière. When examined in 1850 it was found to be supported at each end by pillars of stones and earth. Pottery, burnt stones and broken stone axes were found. It is unknown what kind of purpose it was used for or what kind of structure it is part of. It has been suggested that it is a huge capstone from the late Neolithic or early Bronze Age (about 2500 to 3000 BC). In historical times, it was used by the Jersey people as a place for signing contracts. Because of this it may have been allowed to stand by the side of the now disused St Helier to La Corbière railway, while so many other sites were partially destroyed for building material. The name, which may be interpreted as La Table des Martyres and consequently translated as "The Witnesses' Table", probably derives from this known custom of signing important documents at the slab. Le Pinacle Le Pinacle is a natural rock formation that resembles a gigantic menhir. The site itself is positioned below the imposing Le Pinacle, which is on the west of Le Chemin des Landes. The path down to the site is treacherous, and in recent times has seen two tragic deaths. It is inadvisable to go down unless with properly qualified climbers. There are two earth and rubble ramparts that archaeologists have attributed to the Neolithic/Chalcolithic periods and a third that they have attributed to the Bronze Age. Six pieces of iron found at the site have been attributed to Iron Age occupation. In Roman times the site held a rectangular Gallo-Roman temple. Amongst the large number of finds from various excavations are flints, hammers, rubbers, polishing stones, a copper