Alsace grand cru Geisberg
Styles
Principal grape varieties
Gewurztraminer (Gewuerztraminer)Muscat À Petits Grains BlancsMuscat À Petits Grains RosesMuscat OttonelPinot GrisRiesling (Riesling Weiss)
Terroir
Natural factors
- The substrate consists essentially of dolomites and dolomitic marls overlain by variegated sandy marls with gypsum at the summit, corresponding to the Muschelkalk of the Middle Triassic.
- The vineyard soils are clayey and stony, resting on a geo-pedological unit described as perfectly homogeneous in geological terms.
- The vineyard is situated on steep slopes, magnificently exposed due south, with numerous low walls on the hillsides.
- Cool nocturnal winds known as Tahlwendala emerge from the valley and bring fresh summer temperatures that allow the grapes to ripen slowly.
- The Vosges massif shelters the vineyard from the cool, humid north-westerly winds, favouring the establishment of vines on the well-exposed, steeply sloping hillsides of the sub-Vosges foothills.
Human factors
- The appellation alsace grand cru Geisberg was recognised in 1983, reflecting a long-standing tradition of communicating the geographical origin of Alsatian wines.
- Only the varieties Riesling, Gewurztraminer, Pinot gris, and the Muscats (Muscat à petits grains blancs, Muscat à petits grains roses, Muscat ottonel) are permitted for this appellation, which has been built around white grape varieties.
- The vineyard is trained using a tall trellis system to achieve an optimal leaf surface area, with a minimum planting density of 4,500 vines per hectare and hand-harvesting of the grapes.
- Wines bearing the designations Vendanges Tardives (late harvest) and Sélection de Grains Nobles are made from overripe grapes harvested by hand and must undergo a minimum of 18 months' ageing.
Product characteristics
- These are age-worthy white wines characterised by a marked freshness underpinned by dominant tartaric acidity, the result of good grape ripeness.
- The dry, mineral wines as well as the aromatic, fruit-forward, rich and full-bodied wines display a sustained depth of colour ranging up to golden yellow.
- Vendanges Tardives wines often show highly exotic aromas and candied fruit with a fresh finish, while Sélection de Grains Nobles wines are more concentrated and powerful, often with aromas of fruit paste.
- Both the Vendanges Tardives and Sélection de Grains Nobles designations apply to sweet wines of exceptional keeping potential, with remarkable concentration and great aromatic persistence, displaying a depth of colour ranging up to amber yellow.
Terroir / wine link
- The pedological characteristics associated with the valley-exit location promote salinity and a firm acid backbone in the wines, yielding balanced, refined wines with a long palate.
- The excellent late-season climatic conditions favour concentration on the vine and the development of noble rot, enabling the production of wines from overripe harvests.
Facts drawn from the specification's terroir-link section by automatic interpretation — see the source.
About this boundary
On the map, at overview zooms, this appellation is drawn as a silhouette of its vineyard generalised at 69 m from the INAO parcel delimitation; the parcels themselves appear as you zoom in.