The Suisun Valley AVA is an American Viticultural Area in Solano County, California, located just east of the Napa Valley wine region in the Coast Range. It was established as a wine appellation on 27 December 1982, making it among the first AVAs of California, Napa Valley being the first.
Suisun Valley AVA
French Colombard grapes from Suisun Valley
A vineyard in Suisun Valley with the Twin Sisters (summit) in the background
The Vaca Mountains are a mountain range in Napa and Solano Counties, California that is one of the California Coast Ranges. They represent the easternmost of the Inner Coast Ranges in north−central California, and divide the Suisun Valley on their west, from the Sacramento Valley on their east.
Mt. Vaca and the Blue Ridge, high points of Solano County, as seen from upper Suisun Valley.
A view to the South in the Northern Vaca Mountains. The Canyon in the foreground holds Wildhorse Creek which is one of the few principal streams in this mountain range.
Wildhorse Creek (pictured above) eventually drains this section of the Vaca Mountains into Putah Creek below Monticello Dam.