Ground, register and Grosslage
The site lies east of the Saar proper, in the Konzer Tälchen, the inland side valley that strings together Oberemmel, Krettnach and Niedermennig. That position matters: this is not a river cliff but a broad hill set back from the water.
The einzellagen layer WineSaint ships delimits 126.36 hectares, measured geodesically. The official register records 31.1 hectares under vine (Lage 460237, Gemeinde Konz, Gemarkung Oberemmel). The two figures answer different questions, one counting delimited ground and the other counting vines, so they are never expected to match; here the spread is unusually wide, roughly one planted hectare for every four delimited. Most of the polygon is woodland, scrub and field.
Terrain sampled across the delimited ground puts it between about 190 and 315 metres, well above the elevations of the Saar's classic slopes. The median gradient is near 14 per cent and the steepest ground reaches only about 38. Aspect is mixed because the polygon wraps a whole hill, but the dominant working faces turn south and south-southeast, and Agritiushof, whose cellar sits in the village, describes its Rosenberg parcels as southwest-facing.
The Grosslage is Scharzberg, the 1971 collective that covers the entire Saar Bereich and therefore tells a buyer nothing about origin beyond the river system.
VDP standing
The VDP's vineyard register classifies exactly one site in Oberemmel: the Hütte, roughly 1.2 kilometres east, a von Hövel monopole. No parcel of the Rosenberg appears anywhere in that register, and no VDP member estate is recorded as working here. The only Rosenberg the VDP classifies in the whole of the Mosel is at Kinheim, some sixty kilometres downstream in the Mittelmosel, where Dr. Loosen is among the estates named. A Grosse Lage tag on the Oberemmel site is a filing error inherited from the shared name.
Who farms it, and what it gives
Agritiushof works about 8.5 hectares in Oberemmel, of which 6.5 are steep, on weathered slate soils the estate separates into grey and red. Riesling accounts for three quarters of its plantings; Weisser and Grauer Burgunder, Chardonnay, Spätburgunder and Dornfelder take the balance, and some of that non-Riesling ground sits in the Rosenberg, which yields a rosé as well as dry and off-dry Riesling.
Von Hövel holds a parcel here called the Rosenkamm, treated by the estate as the best ground in the site and blended into its dry Saar Riesling rather than bottled separately. The soil there is given as blue slate with quartzite over diffuse brown earth, sharply drained.
That drainage, plus the elevation and the southerly turn of the slope, is the whole argument for the site. It ripens without the reflected river heat that the Saar's famous walls depend on, and it dries out quickly after rain. The result is a Riesling vineyard that suits dry wine better than Prädikat sweetness, and a site that has quietly become useful for Pinot varieties in a valley that historically grew almost nothing else but Riesling.