Choapa Valley DO

Choapa Valley sits within Chile's Coquimbo Region, in the Choapa Province at the southern end of the region. It is one of Chile's newest and smallest wine appellations, and one of three Designation of Origin sub-regions within Coquimbo, alongside Elqui Valley and Limarí Valley. The valley lies in the narrowest section of Chile, approximately 400 km north of Santiago, and was historically associated with pisco production and table grapes rather than fine wine. Serious wine production here is a recent development, driven by Chilean producers seeking cooler-climate vineyard sites.

• Sub-region of the Coquimbo Region DO in northern Chile
• Historically focused on pisco and table grape production
• Wine production expanded significantly as producers moved into cooler areas
• No permanent wineries operate in the valley; grapes are transported to external facilities

The climate is cool and desert-like, shaped by two powerful forces. The Pacific Ocean's Humboldt Current pushes cold air inland, and the Andes Mountains funnel cool air down into the valley during the growing season. The result is strong diurnal temperature variation, which preserves acidity while allowing full phenolic ripeness. Rainfall is minimal at just 100 to 250 mm per year, demanding dry-farming practices. Luminosity is exceptionally high. Vineyards are planted on rocky slopes at elevations up to 800 meters, with colluvial soils composed of clay, silt, and chalk. Low fertility and good drainage force vines to root deeply, concentrating flavors in the fruit.

• Humboldt Current and Andean elevation combine to cool vineyards during the growing season
• Only 100 to 250 mm of annual rainfall, near-desert conditions
• Rocky colluvial soils with clay, silt, and chalk provide excellent drainage
• High diurnal variation preserves natural acidity alongside phenolic ripeness

Syrah is the flagship variety and the only grape currently holding an official DO designation under the De Martino label. Cabernet Sauvignon, Cabernet Franc, Muscat varieties, and Pedro Ximénez are also grown in the valley. The wines are characterized by high acidity, smoky and elegant character, and concentrated dark fruit. The extreme conditions, low-fertility soils, and high-altitude sites push vines to produce small yields of intensely flavored grapes. The style is lean and precise compared to Chile's warmer central valley regions.

• Syrah is the primary variety and the basis for the only current DO-designated wine
• Cabernet Sauvignon, Cabernet Franc, Muscat, and Pedro Ximénez are also cultivated
• Wines show smoky, elegant character with dark fruit and high natural acidity
• Concentration driven by low-fertility soils and deep root systems

Choapa Valley holds Designation of Origin (DO) status as a sub-region within the broader Coquimbo Region appellation. It is among Chile's newest viticultural areas. De Martino is currently the sole producer holding the official Choapa Valley DO designation, specifically for its Syrah. No wineries are physically based in the valley; all grapes grown here are sourced and vinified by external producers elsewhere. This unusual arrangement reflects the region's emerging status and the logistical challenges of its remote location.

• Official DO status as a sub-region within Coquimbo Region
• De Martino holds the only current Choapa Valley DO-designated wine
• No operating wineries are located within the valley itself
• One of Chile's newest and most sparsely developed wine appellations