Arroyo Seco - Wine Region of the Day

Arroyo Seco

Following the river of the same name through a canyon to the Salinas Valley, the Arroyo Seco appellation is largely nestled between the Gabilan and Santa Lucia Mountains.  The name “Arroyo Seco” means dry creek or dry riverbed in Spanish and the river flows through the canyon to widen into a shallow sandy bed that goes dry seasonally.  When the river is húmeda (wet) it flows into the Salinas River.  As a result, there are two distinct microclimates in this viticultural area.

The main part of the appellation found in the Salinas Valley surround the City of Greenfield is cooler than the passage through the mountains due to afternoon winds and fogs blowing down the valley from Monterey Bay.  This keeps the mid-summer high temperatures from stressing the vines and allows the grapes to mature more slowly and develop maximum flavors.  The vines are prevented from getting too cold by the presence of 3-4 inch cobblestones called “Greenfield Potatoes” which retain the heat and release it slowly over the evenings.  This section of the appellation produces cooler friendly varietals such as Chardonnay, Gewürztraminer, Pinot Grigio, Sauvignon Blanc, and Riesling.

The other portion of the Arroyo Seco appellation follows the river towards its source halting near the boundary of the Ventana Wilderness of the Los Padres National Forest.  This section of the AVA is dominated by a steep canyon with poor soils that make the grapes work to find water.  Climatically, it is warmer than the valley, a reversal of what one normally finds given the increased elevation.  This area of the appellation produces Bordeaux and Rhone varietals as well as Zinfandel.

Though the Arroyo Seco Viticultural Area is one of the oldest in the country (formed in 1983) it has suffered because it has often been seen as a grower’s appellation.  Initially planted in the early 1960s the grapes from its 18,240 acres were often sold to other wineries that used the grapes to produces wines with either the California or Central Coast appellations.  This is changing as more wineries are using this Monterey County viticultural designation on their labels. 

San Antonio Valley - Wine Region of the Day

San Antonio Valley

The San Antonio Valley received its designation as an AVA in 2006. The San Antonio Valley is located in Monterey County and is bordered to the west by the Santa Lucia Mountains.

Unlike many of the wine regions in the United States, there is a long history of viticulture in the San Antonio Valley.   It was home to the Mission San Antonio de Padua that was founded in 1771 by Father Junipero Serra.  Franciscan Missions in Alta California could not rely on supplies from Spain and were required to be self-sufficient.  This meant making flour for bread and grapes for wine.  The Mission is still in operation as a parish church and visitors can see the original wine pressing vats and wine cellar.

The valley is located in the southern part of Monterey County and is located between the Santa Lucia Mountains near the Salinas Valley and includes San Antonio Lake and Fort Hunter Liggett Military Reservation.  The terrain contains gently rolling hills which form a basin or bowl shape.

The climate is typically warm and dry but benefits from the cooling breezes of nearby Lake San Antonio and the Pacific Ocean.  The region averages approximately 3,000 GDD on the Winkler Index indicating that it is the prime climate for Bordeaux and Rhone varietals.  The cool marine air that is so common for Monterey County is mostly absent. The region tends to be hotter and drier during the growing season but cooler during the spring and autumn.

Soil composition is also unique in San Antonio Valley.  Nearby Hames Valley is primarily composed of soils from the Lockwood series that are alluvial fans and terraces of siliceous shale.  San Antonio Valley has a more varied soil profile with 40 different types being represented.  The soil is primarily gravelly loam and clay that are mostly alluvial but with more gravel, sand and clays in the mix.

The region is known for its production of Bordeaux and Rhone varietals but is becoming home to Spanish and Portuguese grapes as well.  You can find Albarino, Barbera, Cabernet Franc,  Cabernet Sauvignon,  Chardonnay, Dolcetto,  Grenache,  Malbec,  Marsanne,  Merlot,  Mourvedre,  Petit VerdotPetite Sirah, Pinot Grigio, Primativo, Roussanne, Sangiovese, SyrahTempranillo, Tinta Cao, Tinta Roriz, Touriga Francesca, Touriga Nacional, Zinfandel being produced in San Antonio Valley.