German Riesling is often discussed through a handful of familiar geological references: slate in the Mosel, quartzite in the Rheingau, limestone across much of Rheinhessen. Yet Rheinhessen is far from geologically uniform. At its western edge, around Siefersheim near Bad Kreuznach, the landscape changes abruptly. Open farmland gives way to steeper hills, exposed rock faces, abandoned quarries, streams, scrub and dry-stone walls. Wagner-Stempel describes this area as Rheinhessen’s volcanic outpost towards the Nahe Valley. That landscape is central to the identity of the estate.