Geography
Pauillac sits on the Left Bank of the Gironde estuary, between Saint-Estèphe to the north and Saint-Julien to the south. The defining feature is gravel, deep gravelly mounds (croupes) over a clay subsoil, which warms quickly, drains aggressively, and forces vine roots deep. The maritime climate moderates extremes; the river itself protects the vineyards from frost in spring.
Classification
Pauillac contains Château Lafite Rothschild, Château Latour, and Château Mouton Rothschild, three of the five 1855 First Growths. Two Second Growths (Pichon-Longueville Baron and Pichon-Longueville Comtesse de Lalande). Plus a deep bench of Fourth and Fifth Growths and Cru Bourgeois châteaux working the same gravel terroir at lower prices.
Style of the wines
Cabernet Sauvignon-dominant blends (typically 65-85% Cab, balance Merlot, Cab Franc, and Petit Verdot). The signature profile is cassis (blackcurrant), graphite (often described as "pencil lead"), cedar, tobacco, and a firm tannic structure that demands cellar time. Pauillac is more powerful and structured than Margaux, more focused than Saint-Estèphe, and roughly the equal of Saint-Julien in finesse.
How they age
Pauillac is built to age. First Growths from a great vintage routinely drink at thirty-plus years and continue to evolve at fifty. Second and Third Growths hit their peak between fifteen and thirty years. Even Cru Bourgeois examples from a top producer in a good vintage hold beautifully for ten to fifteen.
Producers we know
Boulder Wine Merchant carries Pichon-Longueville Comtesse de Lalande, library Latour from the 2010 vintage, and a rotating selection of other classified growths and Cru Bourgeois. For producers slightly south, see Léoville-Las Cases in Saint-Julien.