← Back to all posts

Federal Regulators Review Proposal for New Sotoyome AVA in Sonoma County

April 30, 2026

The Alcohol and Tobacco Tax and Trade Bureau is reviewing the proposed Sotoyome American Viticultural Area in Sonoma County. Alan Ramey, president of Ramey Wine Cellars in Healdsburg, leads the coalition of growers behind the petition. This federal designation would establish a new sub-appellation covering 58,000 acres. The move matters because it defines the distinct climate of the Middle Reach transition zone.

The proposed boundaries sit between the Russian River Valley and Alexander Valley appellations. Approximately 7,000 acres of vineyards currently operate within this territory. The petition argues that the area’s distinct temperature fluctuations justify a separate identity. This region experiences warmer daytime temperatures than the southern Russian River Valley.

This move matters locally because it provides an accurate geographical label for Healdsburg wines. The climate allows for the successful cultivation of both Pinot Noir and Zinfandel. The proposal also identifies specific soil types that differ from the valley floor. The Sotoyome area features a mix of gravelly loam and volcanic debris.

These geological features influence vine vigor and grape chemistry. The AVA designation helps consumers understand why these wines have a specific profile. Local business leaders expect the designation to influence land values and retail pricing. Official sub-AVAs often command higher prices for grapes and finished wine.

The designation allows smaller family-owned vineyards to compete with larger brands. Wineries like Limerick Lane and Williams Selyem have long recognized this specific corridor. The federal review includes a public comment period for local stakeholders. This process ensures that boundaries do not overlap with existing labels.

If approved, Sotoyome will become the 20th sub-appellation in Sonoma County. This expansion reflects the industry focus on geographical precision. The name Sotoyome refers to a historic land grant in the region. This choice honors the cultural heritage of the Healdsburg area.

Integrating the name into wine labels provides a sense of place for international buyers. It also strengthens the identity of the North Sonoma wine community. Growers in the region currently use broader regional labels. A new AVA provides a more specific choice for these producers.

It reduces confusion for customers seeking the style of the Middle Reach. The TTB process often takes several years to complete. Regulators are now assessing the climatological data provided by the coalition. This data includes records from multiple weather stations across the proposed area. WineBusiness reported that the petition was first accepted for consideration following extensive soil mapping. [^1]

[^1]: WineBusiness - https://www.winebusiness.com/news/article/281691