La Rata is a highly sought-after boutique wine project created by Elizabeth Bourcier, the resident winemaker at Cayuse Vineyards. Inspired by the notable blends of Priorat, Spain, the wine is a unique blend of Grenache, Cabernet Sauvignon, and Syrah sourced from the stony soils of the Walla Walla Valley AVA. It is produced in extremely limited quantities and distributed primarily through an exclusive mailing list.