Roth Estate Winery - fine wines from the Alexander Valley and Sonoma Coast.

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Alexander Valley

A narrow, warm and diverse appellation, Alexander Valley is located at the northern end of Sonoma County. Hot midday temperatures give way to maritime conditions in the evenings and mornings when just enough fog makes its way up Russian River Valley into Alexander Valley. This balance of warm and cool benefits the Bordeaux varieties for which Alexander Valley is best known.

Sonoma Coast ›

Sonoma Coast

The Sonoma Coast AVA is the largest in Sonoma County and California’s most extreme region, climate-wise.

Its boundaries run along the Pacific Coast from the Mendocino County line in the north down to San Pablo Bay and Marin County in the south. It encompasses more than 500,000 acres, with only about 7,000 acres presently under vine.

With daytime highs typically in the low 70s and nighttime temperatures that fall to the 40s during the growing season, the Sonoma Coast is the coolest in the state, barely allowing grapes to ripen. These cool conditions are caused by the fog and wind that breeze through the Petaluma Gap, and lengthen the region’s growing season. A typical harvest sees a majority of the region’s grapes harvested in mid-October to November — quite a contrast to warmer regions, where harvest usually begins in August.

‹ Alexander Valley