Reviews · Sonoma Coast 2018 Ultramarine Blanc de Blancs Michael Mara Sonoma Coast 1 note Tasted 26 March 2023 ProducerUltramarine WineAll vintages RegionSonoma County · Sonoma Coast GrapesChardonnay The note Csimm on this bottle 26 March 2023 Putting on the California shades and temporarily leaving Champagne in the rear view mirror, I get a real sense of what this sparkler is trying to… Vertically Other vintages All vintages → 2019