What is the latest AVA to be established in Sonoma County?

The Fountaingrove District is the latest American Viticultural Area (AVA) to be established in Sonoma County, as it was officially designated in 2019. This AVA is located to the northeast of Santa Rosa and is characterized by its diverse microclimates and elevation, which allow for the cultivation of a variety of grape varieties. Fountaingrove District is known for its focus on premium wines, particularly those made from Bordeaux varietals, as well as its unique terroir that benefits from the region's diverse geography and climate.

In contrast, the other options represent AVAs that were established prior to Fountaingrove District. Fort Ross-Seaview was recognized earlier in 2012, Sonoma Coast was designated in 1988, and Moon Mountain District received its AVA status in 2013. Understanding the timelines of AVA designations helps to contextualize the significance of Fountaingrove District in the broader narrative of Sonoma County's wine landscape.