Overview
Uhlen Roth Lay is the largest of the three geological sectors of the Uhlen, the terraced amphitheater on the left bank of the lower Mosel between Winningen and Kobern-Gondorf in the Terrassenmosel. It covers 8.27 of the Uhlen's 16.79 hectares, at the upstream end of the slope; the parcels lie within the municipal territory of Kobern-Gondorf, though the vineyard has always been known under Winningen's name. Weingut Heymann-Löwenstein made Roth Lay a label name by vinifying the Uhlen's three rock formations separately from the early 2000s, and in October 2018 the European Union registered "Uhlen Roth Lay" as a protected designation of origin (gU), among the first single-vineyard PDOs in Germany together with Uhlen Laubach and Uhlen Blaufüsser Lay. Reinhard Löwenstein drove the application over a reported eight years. The site is also classified VDP.GROSSE LAGE in its own right, and local sources call Roth Lay the finest section of the Uhlen.
Terroir & Position
The terraces face south to southwest at gradients above 100 percent; Heymann-Löwenstein gives its parcels as 75-220 meters in elevation at slopes of 100-150 percent. The rock is Devonian, with Ems quartzite among its formations, and it is the hardest stone in the Uhlen: the slate's color shifts from grey to varying shades of red moving up the slope, the reddening due to iron oxide, and iron and manganese deposits run through the cliff walls, with occasional soft clayey bands. This iron-bearing red slate distinguishes Roth Lay from the lime-bearing grey slate of Laubach in the center of the site and the blue-grey clayey slate of Blaufüsser Lay at the Winningen end. Descriptions of the wines consistently emphasize mineral concentration with a subtle iron note.
Producers
Heymann-Löwenstein in Winningen farms four parcels totaling 1.6 hectares behind its Roth Lay bottlings, with vines averaging over 60 years old and a strong ungrafted portion. The Grosses Gewächs is the estate's flagship dry Riesling, fermented on wild yeasts in wooden barrels and aged on the lees into the following summer, and in suitable vintages the site also yields Auslese, Beerenauslese, and Trockenbeerenauslese. Weingut Knebel, also in Winningen, holds VDP.GROSSE LAGE parcels in Roth Lay but bottles its Grosses Gewächs under the undivided Uhlen name. Other Winningen estates, among them Richard Richter and Freiherr von Heddesdorff, farm parcels of the wider Uhlen.
What to Know
Labels may read "Uhlen Roth Lay" or "Winninger Uhlen Roth Lay"; the spelling Rothlay also appears. Under the PDO rules reported at registration, the designation covers dry wines (under 18 g/l residual sugar) and noble-sweet styles, with no Kabinett or Spätlese permitted under the site name. The Kobern-Gondorf location is a cadastral detail, not a stylistic one: the Uhlen is a single continuous slope, and Roth Lay is its upstream, iron-red end.