Position
The delimited polygon runs to 6.03 hectares, taken geodesically, against roughly 90 hectares of vineyard in the commune. Published planted figures will read lower, because delimitation covers registered ground rather than standing vines.
The site lies at the downstream end of the village on the right bank, where the Ruwer swings northwest toward Mertesdorf, and Herrenbergstraße runs along its foot. Terrain around the centre of the polygon sits near 200 metres, some 55 metres above the river and about 300 metres east of it, with the ridge behind climbing past 260 metres. The fall is westward with a southerly component, which puts the working face on a west to southwest exposure rather than the due south alignment that makes Nies'chen. On the Ruwer, where ripening is the entire problem, that is the site's ceiling.
Kasel sits in the Grosslage Römerlay, a collective name spanning Trier and the Ruwer villages that implies nothing about quality. The Mertesdorfer Herrenberg lies about 1.7 kilometres northwest; the two share a name (one of sixteen Herrenbergs in the Mosel) and nothing else, though one grower bottles both.
What Comes Off It
Weingut Erhard Scherf (Karin Scherf, Oberstraße, Kasel) is the dependable source. Its list carries Kaseler Herrenberg Riesling trocken, feinherb and fruchtsüß, every one at Hochgewächs level and every one priced at the floor of the estate's single site range, with a Kabinett just above. Nies'chen supplies the Spätlesen and the Goldkapsel Auslesen; Hitzlay and Kehrnagel supply the Eisweine. Herrenberg appears nowhere in that upper tier. A Kaseler Herrenberg Eiswein from the village cooperative surfaces occasionally on the secondary market, a relic of a period when the site was pushed harder.
No VDP member estate can be confirmed farming here, so no classification is attached to it. Small advertisements offering roughly 1,400 square metres of old Riesling here for contract farming fill in the rest: ground held in fragments by owners who no longer press it themselves.