The Heimbourg vineyard is located on the village of Turckheim, in the continuation of the Grand Cru Brand and Clos Jebsal vineyards, on a very steep south-west slope. The Oligocen soil is described here as marl-calcareous sandstone. The Oolithic limestone rocks are encased in a iron rich limestone sandstone. It is a quite a unique type of limestone soil originating from the erosion of the calcareous deposits that were on top of the mountains. It can be found on quite a few great vineyards in Alsace. Quite rocky, shallow and aggressive, it allows the roots to penetrate the soil a certain depth until the free lime becomes too aggressive. The style of the wine is therefore elegant and delicate with a firm acidity. This vineyard has the capacity to ripen to high level if harvested late, so in order to achieve a dry wine, the date of harvest has to be precise. Always a long fermentation (one of the longest in 2021!) before the wine becomes dry.