Covering 61,85 ha, almost 1,3 km long, the south-facing vineyards of the Mambourg slope dominate Sigolsheim. One of the foothills which penetrates the furthest into the plain of Alsace, it enjoys optimum sunshine. The lime-magnesium soil is only developed on the calcareous and marl conglomerates covering the hills during the tertiary period. Yields are always low, which favours quality.

This is above all a Gewurztraminer soil, but Tokay Pinot Gris, Muscat and Riesling are also planted.

Records show that in 783 the wines of Sigoltesberg (the present-day Mambourg) were already celebrated. Many convents and the nobility owned vineyards here and made them famous.

Mambourg wines are very characteristic, well-balanced, and age well. They are elegant with great finesse, a powerful bouquet and a very long finish.