Rocche di Castiglione is one of the crus that invented the idea of cru Barolo, and Vietti got there first: Alfredo Currado bottled the 1961 as a single vineyard, among the very first Barolos ever labeled by site. Only a tiny handful of estates bottle Rocche at all — Brovia, Oddero from a sliver at the Monforte line, and Vietti — which makes this one of the more sought-after addresses in Castiglione Falletto. The vines are old, planted across 1940, 1950 and 1968 with a southern exposure at about 330 meters, and they give the perfumed, finely structured style Rocche is known for rather than sheer muscle. Fermentation runs about three weeks in stainless steel on the skins, with a cold soak up front and a traditional submerged-cap maceration after, then malolactic in wood and roughly 30 months in oak. The 2020 sits inside the era of the estate's certified-organic farming, which began with the 2019 vintage on Vietti's own vineyards. A classic Barolo for the cellar, and a benchmark for what this cru can do.