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In 1888, some serpentine stones were found in Port Louis, thus described by doctor de Closmadeuc :"From 6 to 9 inches long, with a very sharp base, there is no mark to let you think that a handle was fixed to it"
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dolmen under tumulus of Goërem Gavres - coll. part. |
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the inside of Goërem's dolmen - coll. part.
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"Ile aux Souris : ruined dolmen, buried in the rests of a tumulus. Investigated by Le Pontois which found there splinters and some fragments of pottery. I myself found some splinters of characterless flint, in 1897".
Having been exploited as a stone quarry until 1924, there is no more hope to find there any vestige.
Better preserved megaliths around Port-Louis confirm this former occupation, for example, Kerven dolmen in Riantec, or the dolmen under a tumulus, named Goërem, in Gâvres. This monument, discovered in 1963, dates back to 2480 B.C according to carbon dating
- Serpentine stones : a hard dark green stone with black spots looking like marble when polished.
