The picturesque landscape of Beauce (region situated at the south west of Paris) is distinguished by its scarceness in woods, fields, moors or marshes. In fact, hidden behind the omnipresence of ploughed fields, are twilight zones divided in three different categories of interstitial spaces: - Small parcels of uncultivated lands, wooded or over growned. Scarce, broken up and scattered parcels, these unused lands come and go, with no permanence in time throughout the centuries. - The fallows: more or less extended areas temporarily unused for rotation reasons and that welcome flocks of sheep. - The headlands: zones between fields, without any proper institutional existence but corresponding to a kind of collective appropriation by the local farmers. The "twilight zones" are not necessarily on the margin of the cultivated zones. In the Beauce region, as well as in all open field countries, they are at the heart of the cultivated lands (ou bien at the heart of agriculture)
