
Deux polissoirs de Mondétour, located in Naveil (Loir-et-Cher), is a historic monument. The monument is currently closed to visitors.
Engraved in the rock at the dawn of humanity, the two Mondétour polishing machines in Naveil reveal the daily gestures of the Neolithic craftsmen of the Loir-et-Cher region, listed as Historic Monuments since 1978.

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In the heart of the Vendôme region, in the commune of Naveil, lie two silent witnesses to a civilisation that disappeared over five millennia ago. The Mondétour polishers are blocks of sandstone or hard limestone whose surface still bears the deep grooves and polished cupules left by prehistoric hands. These traces are the exact negative of the gestures of their authors: Neolithic craftsmen who sharpened and smoothed their stone axes, gradually transforming the rock into a collective work tool. What makes these polishing stones truly remarkable is their dual presence on the same site. It is rare for two polishing stones to be preserved in such close association, suggesting a communal workplace, frequented over several generations. Each groove in the rock tells the story of hundreds, perhaps thousands, of patient back-and-forth movements of a flint blade or hard rock axe against the abrasive stone. The local geology of the Vendôme region, rich in outcrops of close-grained sandstone, provided Neolithic communities with an ideal material for this essential task. The experience of visiting the site is as much one of contemplation as of archaeological investigation. As you approach the blocks, you can make out the oval hollows where the polished axes were placed, and the parallel grooves characteristic of the repeated back-and-forth movements. The patina of time and the lichens that now colonise the rock accentuate this sense of profound antiquity. It's a monument modest in size, but immense in temporal depth. The green setting of the Naveil hillsides, bordered by the Loir valley, adds a bucolic dimension to the visit. In this landscape of hedged farmland and gentle hills, the main features of which have probably not changed since the Neolithic period, it's easy to let the imagination wander and imagine the first farmers clearing the land who populated this region in the 4th or 3rd millennium BC. The Mondétour polishing pits are a rare invitation to travel back in time, far from being a tourist attraction.
The Mondétour polishers belong to the category of polished grooved rocks, a type of Neolithic relic that is well represented in central France. They are natural boulders - probably outcrops of calcareous sandstone or hard pudding rock typical of the Vendôme geology - whose upper surface has been used as an abrasive. Their general shape is natural, uncut, which distinguishes the polissoir from other intentionally shaped megalithic monuments such as dolmens or menhirs. The functional surface of each block bears the characteristic marks of its use: elongated, oval or spindle-shaped grooves, varying in depth from a few millimetres to several centimetres depending on the intensity of use, as well as more rounded cupules corresponding to a rotary polishing movement. The length of these grooves is generally proportional to the size of the axes worked in them. The association of two blocks on the same Mondétour site is a distinctive feature that sets this site apart from many isolated polishing sites in the region. There are no superstructures or architectural features to accompany these rocks, which are either on the ground or slightly outcropped. Their heritage interest lies entirely in the legibility of the traces of use and in their state of preservation, which attests to the fact that they have been little exposed to erosion agents for five millennia. The dual presence of these remains in a restricted space is in itself a form of Neolithic spatial organisation, a vestige of a functional layout that has disappeared.
Deux polissoirs de Mondétour is located in Naveil, Loir-et-Cher department, Centre-Val de Loire region, France.
Deux polissoirs de Mondétour is currently closed to visitors.