example of terres blanches clay-limestone white soils on vineyards around sancerre wine making village, rows of sauvignon blanc

age agriculture background blanc blanches blanchot burgundy caillottes chablis clay domain flint flintyclay fossils france french grape harvest hill industry kimmerdigin kimmeridgean landscape limestone limestoneclay loire marl nature outdoor oyster panoramic pouillyfume production row rural sancerre savignon silex soil soils terres terroir tourism traces travel valley view village vineyard vineyards viniculture white wine winery