Located completely within the Columbia Valley AVA and within Benton and Yakima Counties, Rattlesnake Hills is a 16 mile long stretch of territory of basalt mountains. The AVA was created in 2006 but has been under cultivation since 1968 when the Morrison Vineyard was planted with Cabernet Sauvignon and Riesling for Chateau St. Michelle. Currently there are nearly 30 vineyards in the area some of which can be found here
Grape varietals grown in the hills include Cabernet Franc, Cabernet Sauvignon, Chardonnay, Chenin Blanc, Gewürtztraminer, Malbec, Merlot, Muscat Canelli, Petite Sirah, Riesling, Semillion and Viognier.
The AVA is centered around Zillah, Washington. I am hoping given that I will be in Walla Walla which is relatively close by, that I will get to experience the hills for myself. I was especially relieved to learn that the name “rattlesnake” comes from the shape of the hills… and not for any reptilian invaders in the area. I am like Indiana Jones that way. I hate snakes.