Mill Creek-Walla Walla Valley
Walla Walla Valley proposed appellation
Proposed AVA — TTB comment period closes October 13, 2026. This appellation is not yet established; we publish no plantings, acreage or boundary figures for it until it is.
The proposal
The federal Alcohol and Tobacco Tax and Trade Bureau published the proposed establishment of the Mill Creek-Walla Walla Valley viticultural area on August 14, 2026. It would sit wholly within the Walla Walla Valley AVA. Read the notice and file a comment before the period closes:
Mapped here
Nothing mapped yet — this is a proposed appellation with no established boundary, so we place no vineyards inside it.
Vineyards
No vineyard in the reference is placed in Mill Creek-Walla Walla Valley yet.
Wineries that name this appellation
No winery in the reference names Mill Creek-Walla Walla Valley as a source yet.