Upper Lake Valley AVA

Upper Lake Valley AVA encompasses valleys and surrounding hills north of Clear Lake. warm high-elevation days moderated by the lake and cool afternoon breezes, alluvial valley soils with gravelly and volcanic upland material, and varied exposures shape Cabernet Sauvignon, Chardonnay, Muscat, Sauvignon Blanc, and Zinfandel.

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Overview

Upper Lake Valley AVA occupies valleys and surrounding hills north of Clear Lake. Its vineyards vary by elevation, slope, and exposure, producing meaningful local differences. Warm high-elevation days moderated by the lake and cool afternoon breezes guide ripening, while alluvial valley soils with gravelly and volcanic upland material influence drainage and vigor. Its clearest wine identity is Cabernet Sauvignon, Chardonnay, Muscat, Sauvignon Blanc, and Zinfandel; linked vineyards and producers provide deeper specificity.

Geography & Climate

The AVA encompasses valleys and surrounding hills north of Clear Lake, with slopes, elevations, and exposures creating important variation.

Soils

Alluvial valley soils with gravelly and volcanic upland material influence water retention, drainage, rooting depth, and vigor.

Wine Styles

The area is best represented by Cabernet Sauvignon, Chardonnay, Muscat, Sauvignon Blanc, and Zinfandel.