
Polissoirs et menhir de Coinche, located in Chantecoq (Loiret), is a historic monument. The monument is currently closed to visitors.
In the heart of the Gâtinais region of Orléans, the polissoirs and menhir of Coinche bear witness to intense Neolithic occupation: polishing grooves, standing stones and millennia of silence all converge on an exceptional site listed as a Historic Monument.

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Nestling in the quiet bocage of Chantecoq, in the heart of the Gâtinais region, the Coinche polissoirs and menhir are one of the most unusual megalithic sites in the Loiret department. Where the great cereal plains give way to light woodland, these raised and engraved stones emerge from the ground like so many punctuation marks in the long history of prehistory. Classified as a Historic Monument by decree on 9 December 1986, the site brings together two complementary types of remains which, together, tell the story of the daily and symbolic lives of the region's first farmers. The polishers - sandstone slabs or boulders with deep parallel grooves - are the hallmark of the Neolithic communities who sharpened and polished their stone axes here. The repetition of these gestures over decades, even centuries, has carved smooth grooves into the rock, the depth and number of which testify to intensive use. To look at these grooves is literally to place your fingers where farmers from the 5th or 4th millennium BC worked every morning. As for the menhir, it imposes its solitary verticality on the landscape. A stone erected by human hands at a time when metal was still unknown, it embodies the ability of Neolithic societies to organise a considerable amount of collective work to erect a lasting monument. Its presence alongside the polishers suggests that the Coinche site was much more than a simple workshop: it was a space charged with meaning, perhaps a territorial landmark or a community gathering place. The tour will appeal as much to lovers of prehistoric history as to walkers in search of an intimate encounter with the depths of time. The absence of ostentatious staging preserves a raw, authentic atmosphere that is rare in this age of spectacular heritage enhancement. The surrounding agricultural setting, punctuated by hedgerows and sunken lanes, reinforces this impression of passing through time without intermediaries.
Coinche polishers are blocks of local sandstone with sub-horizontal surfaces bearing numerous rectilinear grooves carved by the repeated rubbing of stone tool blanks. These grooves, two to five centimetres wide and sometimes several centimetres deep, are the unmistakable signature of polishing activity. Their varying orientation on the same block suggests that several craftsmen were working simultaneously or successively, each adopting the most convenient position to exert the necessary pressure. The menhir, an oblong-shaped standing stone, is carved from a weather-resistant material, probably a hard sandstone or limestone characteristic of the local geology. Its emerging height - typically between one and three metres for isolated menhirs in the Centre region - gives it a recognisable silhouette in the flat Gâtinais landscape. The cross-section of the stone, slightly enlarged at the base to ensure stability in the ground, bears witness to empirical know-how in the selection and installation of the blocks. The site as a whole occupies a modest area, which is characteristic of the small megalithic complexes of the Orléans Gâtinais, which are distinct in scale from the large Breton alignments but comparable to the polissoirs found in the Forêt de Fontainebleau or Beauce. The spatial association of a polissoir and a menhir in the same area is relatively rare and reinforces the archaeological value of the site.
Polissoirs et menhir de Coinche is located in Chantecoq, Loiret department, Centre-Val de Loire region, France.
Polissoirs et menhir de Coinche is currently closed to visitors.