Côte Blonde (Côte-Rôtie Sector)

Côte Blonde extends from the Reynard stream descending through Ampuis village south through the parcels around the village and onward toward the boundary with Tupin-et-Semons commune. The Reynard stream is the conventional dividing line with Côte Brune to the north, though the actual geological transition between the two sectors is a gradient zone several hundred metres wide. The sector runs along the right (east) bank of the Rhône, with the river curving below to the west and the steep terraced slope rising sharply above. Terraces face south to south-southwest, capturing late-afternoon and evening sun on the warmer aspects. From the village of Ampuis southward, the road runs at the base of the slope while the named parcels rise above; La Mouline (the Guigal-exclusive cuvée parcel), Bouchey, La Garde, Lancement, and the Côte Blonde lieu-dit itself are visible as named, signed parcels marking the historical and contemporary structure of the sector.

• Southern half of the Côte-Rôtie appellation from the Reynard stream south to the Tupin-et-Semons commune boundary
• Reynard stream is the conventional dividing line with Côte Brune; actual transition is a gradient zone several hundred metres wide
• Terraces face south to south-southwest on the right (east) bank of the Rhône, with the river curving below to the west
• Major lieu-dits visible from the Ampuis road: La Mouline, Côte Blonde, Bouchey, Lancement, La Garde, La Chatillonne

Côte Blonde's bedrock is dominated by Hercynian (Variscan) granite, the same age class as Hermitage and Cornas granite, where post-orogenic intrusions cut through the older metamorphic basement that elsewhere gave rise to Côte Brune's micaschist. The granite is exposed at the surface in many parcels, with thinner topsoils than Côte Brune (where erosion has stripped away more of the metamorphic cover). The southerly parcels contain patches of limestone-bearing clay-marl from later sedimentary deposits, adding a calcareous element absent from the pure-granite zones. Surface soils are visibly paler, with a tan-buff to light brown surface register that contrasts sharply with Côte Brune's darker hue and gave the sector its name. Granite drainage forces vine roots to penetrate deeply through fissures in the bedrock, but the lighter soils warm faster in spring than Côte Brune's clay-loam topsoils, contributing to earlier ripening on average. The mineralogy contributes a distinctive bright, vertical mineral signature to wines, layered onto the more perfumed Syrah aromatic register that characterizes the sector.

• Bedrock: Hercynian (Variscan) granite from approximately 300 to 350 million years ago, exposed at the surface in many parcels
• Surface soils: thinner than Côte Brune, paler tan-buff to light brown color from the granite parent material
• Patches of limestone-bearing clay-marl in the more southerly parcels add calcareous element absent from pure-granite zones
• Granite drainage forces deep rooting; lighter soils warm faster in spring than Côte Brune's clay-loam topsoils

Côte Blonde Syrah is the more perfumed, silken, aromatically lifted half of the Côte-Rôtie stylistic spectrum. The combination of granite bedrock, thinner topsoils, and traditional Viognier interplanting produces wines of brighter color, finer-grained tannin, more pronounced floral and fruit-driven aromatic register, and more approachable texture in youth than Côte Brune counterparts. Aromatically the sector shows red cherry, raspberry, blackberry, violet, rose petal, white pepper, and (in co-fermented cuvées with Viognier) peach and apricot lift. The palate is silken, aromatic, and structured but more approachable than Côte Brune in youth; aging trajectories run two to three decades at the highest level rather than the four-plus of the most ageworthy Côte Brune wines. La Mouline (Guigal, 11 percent Viognier co-ferment) is the textbook expression of the sector's perfumed register, regularly cited as one of the most aromatic Syrahs in the world. The contrast with the more powerful, structural Côte Brune register is the stylistic frame through which the appellation has been understood for at least four centuries.

• More perfumed, silken, aromatically lifted half of the Côte-Rôtie stylistic spectrum; brighter color, finer-grained tannin, more approachable texture
• Aromatic register: red cherry, raspberry, violet, rose petal, white pepper, peach, apricot (in co-fermented Viognier cuvées)
• Aging trajectory: two to three decades at the highest level; more approachable in youth than Côte Brune counterparts
• Reference cuvées: Guigal La Mouline (11 percent Viognier), Rostaing Côte Blonde, Stéphane Ogier Lancement, Bonnefond Côte Blonde

Guigal's iconic La Mouline (89 percent Syrah and 11 percent Viognier from approximately 1 hectare on Côte Blonde, first vintage 1966, aged in 100 percent new French oak from the inaugural vintage) is the textbook Côte Blonde cuvée and the most famous co-fermented Syrah-Viognier wine in the world. René Rostaing produces a Côte Blonde alongside La Landonne, working approximately 8 hectares across both sectors with parcels in La Landonne, Côte Blonde, La Viallière, and other lieu-dits; the contrast between his Côte Blonde and La Landonne cuvées is the textbook single-producer Brune-Blonde flight. Stéphane Ogier produces Lancement (Côte Blonde) alongside Belle Hélène (Côte Brune) and other single-lieu-dit cuvées across his 45 hectares. Domaine Bonnefond (Patrick and Christophe, third generation since 1990) holds 7.5 hectares in Côte-Rôtie including parcels in Rozier (Côte Brune) and La Garde and Côte Blonde sites; their Côte Blonde-leaning cuvées emphasize the perfumed register. Vignobles Levet's Les Craies (0.5 hectares of old vines on Côte Blonde) and Mollard (0.33 hectares) provide their Côte Blonde holdings, balanced against the larger Chavaroche (Côte Brune) parcel. Domaine Vernay produces Côte-Rôtie Maison Rouge from Côte Blonde parcels acquired in the 1990s. Other producers with Côte Blonde holdings: Domaine Pichon, Domaine Bonserine (Guigal-owned), Vidal-Fleury, Pierre Gaillard, and Domaine Clusel-Roch.