Kelsey Bench-Lake County AVA

Kelsey Bench-Lake County AVA sits on elevated terraces south of Clear Lake in Lake County, California, nested within the broader Clear Lake AVA. The bench itself is the geological transition between volcanic mountain terrain and the alluvial flood plain below, originally formed as a pyroclastic lava flow from nearby Mount Konocti. Tectonic uplift over millennia created the distinctive raised terraces that define the appellation. The AVA was officially established in October 2013, alongside the adjacent Big Valley District AVA to the north; both appellations were petitioned and ruled on together by the TTB.

• Named for Andrew Kelsey, the first European American settler in the area
• The term 'bench' reflects the elevated terrace topography carved from ancient lava flows
• First vineyards in the area were planted in the late 19th century
• Shares a TTB ruling with Big Valley District AVA, established simultaneously in October 2013

The appellation experiences a Mediterranean climate with warm daytime temperatures and pronounced day-to-night temperature swings. Elevations between 1,400 and 1,775 feet generate the wide diurnal variation that allows grapes to ripen slowly, retaining natural acidity while developing full fruit character. Cold air drainage flowing down from the surrounding mountains extends the growing season and reduces the risk of frost. Compared to neighboring Lake County sub-appellations, Kelsey Bench is warmer than Big Valley District but cooler than Red Hills Lake County AVA, placing it in a moderate position within the county's climatic spectrum.

• Elevation of 1,400 to 1,775 feet drives significant day-to-night temperature variation
• Cold mountain air drainage extends the growing season and mitigates frost risk
• Northeastern exposures moderate heat accumulation during the growing season
• Slower ripening produces balanced fruit and acidity in both reds and whites

The defining characteristic of Kelsey Bench soils is their volcanic origin. The terraces were formed from pyroclastic flows originating at Mount Konocti, leaving behind rich red volcanic soils layered with gravel beds. This combination provides excellent drainage, a critical factor at these elevations where water retention would otherwise slow ripening and dilute flavors. The mineral-rich volcanic material contributes to the complexity found in wines from the appellation, particularly in the white varieties grown here.

• Rich red volcanic soils derived from Mount Konocti pyroclastic flows
• Gravel beds throughout the profile provide excellent drainage
• Well-drained volcanic terroir concentrates flavors and supports vine stress
• Mineral richness in the soil contributes to complexity in both red and white wines

Kelsey Bench supports a wide range of varieties across its 900 planted acres and 27 vineyards. Sauvignon Blanc thrives here alongside Chardonnay, Viognier, and Riesling among whites. Red plantings include Cabernet Franc, Zinfandel, Merlot, Malbec, Petit Verdot, and Barbera. The appellation's signature style leans toward balanced, fruit-forward wines. Reds deliver bold flavors with elegant finishes, while whites show genuine complexity, both supported by the natural acidity preserved through the cooler nights and long growing season. Notable producers working within the AVA include Rosa d'Oro, Smiling Dogs Ranch, Shannon Ridge, and Prima Materia.

• Key whites: Sauvignon Blanc, Chardonnay, Viognier, Riesling
• Key reds: Cabernet Franc, Zinfandel, Merlot, Malbec, Petit Verdot, Barbera
• Wide diurnal variation preserves acidity in both red and white varieties
• Notable producers include Shannon Ridge, Rosa d'Oro, Smiling Dogs Ranch, and Prima Materia